I have such an extreme attitude about work, where I can just completely be derelict of my responsibilities and then when I am not derelict, I am completely indulged in it. I swing pretty wildly from the two extremes.
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.