Retail sales cashierThe hours: Variable. Plan on working evenings and weekends. Median pay range: Pay can range from $7.15 to more than $12 an hour. Qualifications: Cashiers need little or no previous experience, although it helps. Training is generally on the go with a more seasoned co-worker. Department and chain stores might offer a short training course to get you up to speed on customer service, security, the store's policies and procedures and cash register operation. Employers generally run a background or credit score check to make sure you can be trusted to handle money. You should be at ease with financial transactions and basic computer commands. Remember: The customer is always right. --Written by Caitlin Walsh in Boston, with excerpts from Great Jobs for Everyone 50+: Finding Work That Keeps You Happy and Healthy ... And Pays the Bills.