How to shop in thrift/second hand stores
Thrifting has become trendy and it is a great way to save a lot of money. However, to make it worth your shopping dollars it helps to understand how to shop a thrift store.
1. The first rule of thrifting - Condition, condition, condition! Unless you are someone who lives to fix stuff, avoid the impulse of buying something that has obvious defects. Ask yourself, when would I have time to fix this, do I have the materials I need to fix it today, and have I ever fixed this kind of problem before. If you cannot answer yes to all of these questions leave it in the store.
2. Have an idea about what you are trying to find - you can throw away a lot of money in thrift stores if you browse the way you would at the mall. If you are looking for a pair of jeans, look for jeans. Have some tunnel vision. There may be other great things to tempt you with their low prices, but if you didn't need it before you entered the store you don't need it now.
3. Know your brands - do some research. All things are not created equal. We love name brands for a reason, we can predict their quality. Especially in thrift shopping the better the quality of the item, the better the bargain. It helps to be aware of the retail cost of the item you are looking for. Take the retail cost cut it in half, any price under that is a great bargain as long as the condition is good.
4. Be patient - thrift shopping is rewarding in part because it can be work to sort through items to find what you are looking for. When you do it is like finding buried treasure. That first trip to a thrift store can be daunting, it's not glitzy. They have not spent money on advertising displays to lure you into the store. All of that saving is passed on to you.
Thrifting can save thousands of dollars a year on clothing and household items. Especially if you have kids. With a little effort and some patience you can look good, feel good and keep most of your money in your pocket!

I love thrifting.
I go thrifting at least once a month with some friends. The only things I don't buy at second hand stores are undergarments. Yes, they have them. I saved a bunch load of money by switching from my monthly mall visits to a monthly thrift store visit.