I switched over to a spice drawer, using this In-Drawer Spice Rack ($24.99, The Container Store). Unlike the spice carousels where you need to spin and spin to find what you want, here every spice is available face up and ready to grab one-handed. It is easy to see what spices you're running low on. I like how this long narrow rack leaves a margin along side of the drawer. That's where I keep my unopened bags of spices and pre-packaged spices, like Old Bay, that don't fit into the rack.
The biggest downside to the spice rack system is that a whole drawer needs to be sacrificed for spice. Many apartment cooks won't want to give up a knife drawer for a spice spot. Where do you store your spices? If you happen to have any pictures of your collection, we'd like to see.