I found tracking software (Poker office in my case) a great help at micro levels to find out which hands are costing you money. Its not always obvious in the erratic games that take place at that level. If you do a sign up somewhere to get it for free make sure it's somewhere that doesn't do rakeback like Ipoker sites (or bodog if you're in the states). I screwed up a lot of potential rake back when I first started by signing up to poker rooms for free software, gifts etc. I'm regretting it now that I'm moving up a bit.