How to Avoid Procrastination

I find that one of my best weapons against crastination is time blocking. I've heard people say you should only write down like three things that you're going to try to do in a day. And so i kind of forced a filter on myself to pick the three things that were the most important. If i get these things done, then the day was successful and i'm not going to worry about anything else. Every once in a while i will not be able to follow through o those things. But i want that to be by far the exception and not the norm.