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.
Among the children of God, it was they who were most able to rightly divide the word of truth.
Whether you're winning or losing, it is important to always be yourself. You can't change because of the circumstances around you.