2. The movies

Like an engagement ring, a movie ticket costs the same on Valentine's Day as it does the rest of the year.

Like the engagement ring, though, it's the circumstances surrounding that movie ticket that make hitting the theater on Valentine's Day a fool's errand. As Comcast ( CMSCA)-owned movie ticket site Fandango found out two years ago, more than 60% of Valentine's Day moviegoers buy their tickets weeks in advance.

Also, the Academy Awards nominees have already been announced and will likely still be in theaters on Valentine's Day -- just 10 days away from the awards ceremony. This means showings of Les Miserables, Silver Linings Playbook and Lincoln that have been half-empty for weeks will be packed with the texting, chattering, shifting, question-asking hordes who seemingly have never been to a movie until just this moment, when they decided to sit right next to or behind you.

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