i'm hoping this thread will help me, and eventually help other people in regard to make the operating system more responsive, and does everything faster. i've noticed generally the computers in the apple store, even though have lots of applications loaded, are still quite responsive. does anybody know how did they optimize it? or can you share how did you optimized your system to make it more responsive? there are two ways: hardware improvement, and software optimization. obviously buying "better" hardware can help, but for those of us who can't afford to upgrade components of the computer, we can only resort to software optimization. i'll start with the most obvious ones (since one reason i started this thread is i dont know how to optimize, i'd like to learn some tricks ) 1. repair disk - if your file system has problem, it will likely to be causeing problem. 2.let's also try not to "optimize" at the cost of functionality, for instance, disable dashboard might help, but that's one big feature of tiger (however, limit dashboard active widget is a good one!) what do you guys have?