I want to know how to properly remove junk build up/clutter/garbage from my Mac. Every now and then a computer will start to run akwardly/sluggish/strange behavior and i want to give it that kick in the right direction like it was the first day i got it. Maybe its crap i downloaded that makes it funk up or just haivng it sleep for a couple of days, but i just want to know what the heck am i suppose to do when i come across this situation...