Everything that works in sales has been done already. Just keep track of the crap that you buy, or the awesome stuff that you buy, and decide what was the trigger, and then just sell to people like you. It's really that easy - and that's what I do.
Having said that, I'm a huge Jack Nicholson fan because he just goes nuts in everything he does. Having Jack in his heyday would also be a dream come true.
I'm always improving and I want to get better and never hit a plateau. I find it an amazing adventure.