After 6 weeks, I finally managed to do one hundred pushups in a row. Not that easy, I hear you say? So go ahead, try it yourself. And then you may wish to take a look into this great program by Steve Speirs.
One Hundred Pushups is a set of guidelines to make you able to do that, without much effort, and in your own time. The only rule you have to keep in mind is to keep from cheating to yourself. Trust me. If not for anything else, it'll blow some steam away from you, make you sleep better with your body as tired as your mind!