10 for $10!
How many times have you seen that advertised? (Um, can you say Kroger?)
Did you know that you don't usually have to buy 10 items to get the items for $1 each?
My Hubs didn't believe me on this one! When he was at the store one day, he bought 1 "10 for $10 item" just to prove me wrong. He was entirely unsuccessful. :D
Just make sure you read the fine print. If it says "Must buy 10" or something like "$1 each/2 for $1.75", then you have to buy that number to get the lower price.
Walgreens is one place where you have to buy a certain number to get the lower price, but most places fall into the other category.