While there's no “perfect” day to shop second hand stores, many regulars swear by shopping early on Monday and Tuesday. Homeowners tend to drop off garage sale leftovers on Sunday nights, making for new finds. Plus, the weekends are more crowded shopping days, so employees look to restock early in the week.

The clothes that you acquire at a thrift store are much cheaper than when they're brand-new with tags. Some items in the thrift store may even have tags on them, signifying that they've never been worn.

Thrift store prices are low, but that doesn't mean they can't go lower. If you think something is priced too high for what is, ask if they're willing to take less for it. Just be polite in doing so and don't be discouraged if they're not open to bargaining.

Thrift stores are loaded with clothes, and people who know which brands and styles to look for can find plenty of clothing items they can flip for a big profit.