Coffee and tea are classic and natural sources of caffeine for a little pick-me-up, but if you’re in need of a bigger dose, more along the lines of a venti quad-shot latte at Starbucks (Stock Quote: SBUX), there are several drinks to choose from that come cheaper, and in much smaller packages. While we don’t condone over-the-top caffeine use, we are big proponents of smart spending, so here’s a look at 20 drinks with the highest caffeine content per ounce, according to energyfiend.com, that are likely to give you the most bang for your buck. Photo Credit: Evil Erin

Two to four cups of coffee at day, or about 200 to 300 milligrams of caffeine should be fine for most people, according to the Mayo Clinic. But as many caffeine consumers know, these jolting drinks can leave you irritable, shaky, nervous and restless. Even worse, caffeine can make your heart beat at dangerously high rates and cause gastrointestinal problems. Extreme amounts of caffeine can even kill you. But if you can control your caffeine consumption and limit it to safe levels, here are a few small bottles that pack a potent punch. Photo Credit: 5150juice.com

These fancy little bottles that pack 160 milligrams of caffeine come from Mana Energy Potion, a company that boasts creating “the premium energy potion made by gamers, for gamers.” Caffeine per ounce: 80 milligrams Price per 100 milligrams: $1.83, based on a 12-pack of 50 milliliter bottles for $35. Photo Credit: fisherkiller

Unlike Jolt Cola, the Jolt Endurance Shot promises “Six hours of energy in every bottle! Sustained energy, zero crash, no sugar.” Caffeine per ounce: 100 milligrams Price per 100 milligrams: $1.67 based on a 12-pack of 2-ounce shots for $40. Photo Credit: amazon.com

This shot promises a healthy dose of B vitamins, plus the amino acid taurine, folic acid, Siberian ginseng and 200 milligrams of caffeine in every bottle. And there’s no sugar in these fruit-flavored drinks, so you won’t sugar crash. Caffeine per ounce: 100 milligrams Price per 100 milligrams: $1.50 based on a dozen 2-ounce bottles for $36. Photo Credit: redfinenergy.com

This energy shot contains vitamins, minerals and electrolytes and it packs a 180-milligram caffeine punch, which the company suggests may be especially helpful when you’re driving and sleepy. Caffeine per ounce: 90 milligrams Price per 100 milligrams: $1.48 based on a six-pack of 2-ounce bottles for $16. Photo Credit: amazon.com

When added to a bottle of water, these packets of fizzy, fruit-flavored powder promise “energy, immunity, recovery, focus.” Caffeine per ounce: 80 milligrams Price per 100 milligrams: $1.46 based on $28 for 24 powder packets to add to a bottle of water. Photo Credit: eboost.com

The original Mana Energy Potion is cheaper than the creepy red Health Potion the company makes (those bottles look a bit like they're filled with blood ). According to the company, “It's for long nights of gaming, partying, and the longer mornings that follow.” Caffeine per ounce: 118.5 milligrams Price per 100 milligrams: $1.46 based on $14 for a six-pack of 50-milliliter shots. Photo Credit: fisherkiller

Upshot boasts being 2 ½ times as effective as canned energy sodas, and reviewers say you won’t get the jitters after you drink it. Caffeine per ounce: 80 milligrams Price per 100 milligrams: $1.38 based on a twenve-pack of 2.5-ounce bottles for $33. Photo Credit: amazon.com

Powershot gives caffeine-seekers an extra boost with the amino acid l-carnitine, taurine and panax ginseng root extract. Unfortunately it also contains high-fructose corn syrup and sucralose for good measure. Caffeine per ounce: 100 milligrams Price per 100 milligrams: $1.38 based on a 12-pack of 2-ounce bottles for $32.95. Photo Credit: amazon.com

The regular Monster Energy Drink may be too sugary and carbonated for some consumers looking for a caffeine kick, but the Monster Hitman Sniper energy shooter “is designed to go straight to your head and leave you wondering what hit you,” the company says. Along with caffeine and sugar in the form of both glucose and sucrose, plus some sucralose, these shots contain taurine, ginseng root extract, l-carnitine and guarana seed extract. Caffeine per ounce: 80 milligrams Price per 100 milligrams: $1.15 based on a 12-pack of 3-ounce shooters for $33. Photo Credit: monsterenergy.com

Advertised as the “world’s most extreme energy shot,” this shot should give you a good jolt when you’re running on empty, according to the drink’s maker, Ener Formulations. Caffeine per ounce: 110 milligrams Price per 100 milligrams: $1.14, based on a two-pack of 2-ounce bottles for $5. Photo Credit: extremeenergy6hourshot.com

Makers of popular carbonated energy drinks appear to be catching on to consumer demand for less volume and less sugar in their drinks, but just enough caffeine, or even more than their traditional drinks. Rockstar is no different. Caffeine per ounce: 80 milligrams Price per 100 milligrams: $1.13 based on a 12-pack of 2.5-ounce shots for $27. Photo Credit: rockstar69.com

Ammo is yet another name that implies explosive, caffeine-induced energy that lasts. But beyond what most of the other energy shots on this list contain, Ammo also provides a bit of Horny Goat Weed, a libido booster, the amino acid L-arginine and Muira Puama, also known as “potency wood,” which is used as an herbal supplement in Brazil. Caffeine per ounce: 171 milligrams Price per 100 milligrams: 98 cents based on a 12-pack of one-ounce bottles for $20. Photo Credit: drinkammo.com

OnGo promises that its no-carbs, no-sugar shot will “go down smooth and works like a charm” to improve stamina, focus and endurance. Caffeine per ounce: 89 milligrams Price per 100 milligrams: 89 cents based on a 12-count case of 2-ounce bottles for $19. Photo Credit: ongoenergy.com

The Spike Double Shot is just one of many drinks made by Biotest to boost athletes’ energy. Caffeine per ounce: 82 milligrams Price per 100 milligrams: 81 cents based on a six-pack of 4.26-ounce shots for $17. Photo Credit: biotestaustralia.com

These shots, at least according to manufacturer Labrada Nutrition, contain “just the right amount of caffeine.” In addition, Charge shots contain more than 2,435 milligrams of antioxidants. Caffeine per ounce: 100 milligrams Price per 100 milligrams: 80 cents based on a pack of six 2.5-ounce bottles for $12. Photo Credit: amazon.com

Redline makes supplements meant to help the body-conscious burn fat, and the company calls its product “the most efficacious fat burner and energy producing supplement on the planet,” but we’d like to see the data to prove it. Caffeine per ounce: 140 milligrams Price per 100 milligrams: 80 cents based on a 24-pack of 2.5-ounce bottles for $67. Photo Credit: redlinerush.com

In addition to L-Taurine and B-Vitamins, 357 Super Magnum contains Eleuthero Root to reduce fatigue. Caffeine per ounce: 125 milligrams Price per 100 milligrams: 80 cents based on a 12-count package of 2-ounce shots for $24. Photo Credit: dbidist.com

Fixx Extreme could be the energy shot of choice for Hulk Hogan fans or those aiming to be model material, the company's Web site suggests. So, whether you’re beefing up or slimming down, this might be the drink for you. Caffeine per ounce: 2,353 milligrams Price per 100 milligrams: 75 cents based on a 24-pack of 0.17-ounce packets for $71.74. Photo Credit: getyourfixx.com

These little shots come in little coffee creamer cups, which may help remind users that it’s too potent to drink straight. You’re supposed to add them to a regular cup of coffee. Stok says the packaging is for portion control, but we think it’s to help prevent you from killing yourself with caffeine. Caffeine per ounce: 91 milligrams Price per 100 milligrams: 50 cents based on a 200-count case of 0.44-ounce shots for $39.95. Photo Credit: getstokd.com

Caffeine addicts can inject their drug of choice quite literally with 5150 Juice syringes. The shot goes directly into the beverage of your choice, but because of its extremely high potency, you may want to stick with just one fix. Caffeine per ounce: 500 milligrams Price per 100 milligrams: 35 cents based on a 24-pack of one-ounce syringes for $42. Photo Credit: 5150juice.com

Too pepped up after reading about all of these ridiculously hopped-up energy drinks? Then chill out with one of these awesome (and super cheap) beers. Photo Credit: mccun934

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