Storing knives properly helps them to maintain their edges. Here are some ways to make sure your knives stay their sharpest.
If you're going to keep your knives loose in a drawer, be sure to encase them in the covers they came in -- or in a plastic knife cover.
An in-drawer knife tray, with slots for different blade and handle sizes, keeps knives from colliding, which dulls and damages edges. Label each slot indicating which knife goes where to make it easier to put away your knives, and to find the ones you need when cooking.
A wall-mounted magnetic strip is another great storage option.
This technique was adapted from "Martha Stewart's Homekeeping Handbook."