Small Mesh Bins
One of the most basic organizing tips I can tell you (and I have; I promise) is to put like items together. If you have one of those, somewhat evil yet often necessary, "miscellaneous" drawers, it shouldn't double as a dumping ground. The pens should stick together, the paper clips should be contained and the matchbooks should be cliquey. Here's where small mesh bins come in handy. They come in all different sizes and are super thin (and therefore don't consume all of the space). Personally, I keep one in my medicine cabinet for all of the smaller objects in there. You can get creative with these guys! Heck, I dare you to.