Yesterday I went to a book sale. I had to ask myself why I keep going to these, since it's not like I need any more books, and it's not like I don't have other ways to spend my money... but I figured out why (other than the fact that while I don't need more books, I certainly want more). I love book sales because it's all about the hunt. You go in, not knowing what you're going to find, but you know you need to find it. And when you do, you grab it off the shelf and pump your fist in the air in triumph (well, not really, unless you want people to give you weird looks).
So here's what you do, if you're going to go to a book sale (your mileage may vary, depending on where you are/whose book sale it is).
Walk in the door and smile at the woman at the table in the front. Usually the carts/baskets are all taken, but if someone leaves and one frees up, she just might call you first. It's very important to be nice to her.
Go straight to the section you love most. Young adult, fiction, CDs, biographies, whatever. If you pass this up, you'll always wonder if you lost out on a chance to own the Holy Grail of books (or CDs, depending on your section).
Make your way around the sale, taking a few long glances at the bargain books. Once everyone's out of the way, swoop in and collect the books you picked out. Or, if you think you can, grab the books while people are still looking. It's completely okay, especially if these people are picking out gifts for someone else--they'll stand there looking for hours.
Go to the CD/DVD/audiobook section. These usually cost more than the books, so it's important to get the cheap things first, and then the expensive ones (If you've already gone through these sections as your "Love" section, skip this step).
Get in line. Depending on how many people are at the sale, the line might wrap around a while, and you can still look while you wait.
Make awkward small talk while the people check how many items you have and what they cost. Hint: if you're under twenty and you're buying something by Shakespeare, it will get mentioned. Be prepared to say, "No, it's not for a class. I just like it." They will either not believe you or make some joke like, "An <insert age here>, reading Shakespeare? We should give it to you for free!" They won't.
Leave, stopping to check the free carts outside for anything you might want. Sometimes there are pleasant surprises, but mostly there are reasons for these books being free.
Go home and be amazed at your awesome book/CD/DVD haul. Repeat as necessary.