I got this giant 5 pound box at City Market last week for $8.88! That's $1.78/lb!
I made blueberry muffins, blueberry pancakes, ate a bunch fresh, and still had a whole bunch left over. That's when I decided to freeze them. The best way is to freeze them in a single layer on a cookie sheet, then put them in a container.
First, wash them and drain them pretty well. Any water leftover on them will just freeze them together and to your pan. Then spread them out in a single layer on any type of pan with sides. Sides are important.
Let them freeze for at least an hour. You want to them freeze individually so that when you put them into a container and put them back in the freezer, you don't end up with a brick of blueberries. You'll probably have to use a spatula to free them from the pan, unless they were completely dry to begin with.
Put them in some type of container. I used a freezer bag, but any kind of container would work just fine.
Now you have them ready for anything! I like to use them frozen in smoothies or thaw them out for pancakes or muffins. And here's my tip for putting them in pancakes. Instead of adding them to the batter, drop them on top right after you've ladled the batter onto the griddle. Delicious!