Sniper services are good, and I never bid more than 5 seconds before the end. If I'm being serious, my watch list will be maxed out, but I might only bid on one of those 100 things. I list everything I'm at all interested in that's currently cheap, and if it's coming up cheap, I bid regardless of whether it's something I need right now. On the one hand, this means I wait a long time for some things I want, but on the other, it means I get stuff crazy cheap, and there's always something I can use on some project, or trade with someone else, and almost everything I buy is crazy cheap.