I don't have to trick my ego because I expect to find problems, but I also -usually- don't have someone to talk the code over with like others have suggested. So I will print out a copy and go somewhere else with a pen. I'm not sure if it's the change of environment or the hard copy that helps more, but it works pretty well.

Update: No wonder I am not very good yet...I've only got 2 out of 3.

• laziness
• impatience
• hubris