I have 100% of the time. I work for myself. What this has resulted in, is that everything I work on, either manifests into something that has a direct consequence on the bottom line. Or I have something that is in progress and I get back to it when I have some inspiration. Or it is something that I can't yet crack and goes into a folder until I pick it up again way down the line.

I know if I recruited for my company. I would have this 20% philosophy.