>>2I do the same thing. I have far too many toys around my home to focus and get some real work done. Now if you're asking how to study, meaning the exact process, it varies depending on what you're trying to study and what subject.
For math and some sciences, practice makes perfect. Do problems in the book that make use of whatever it is you need to learn.
If you're trying to understand complex principals or ideas, try explaining it to yourself as if you were trying to teach someone quite a bit younger than you the problem. It will help organize the key points of the idea in your mind, and it's been shown that you learn better while teaching. I figure "teaching" yourself has to do at least a little good.
For strait up memorization, I personally learn best by hearing than by reading/seeing. I'll usually physically write out what I'm attempting to memorize and then read it out loud to myself. Mnemonics, and self quizzing are effective too.
