If it's only a few minutes, log onto Yedda and answer a couple of questions. Go out into the garden and yank a couple of weeds. Lean over the fence and gossip with the neighbors. Write a letter to a friend you haven't seen for a while, or call someone and catch up on things. Start an e-bay account and post an item for sale.
There are a million hobbies and types of volunteer work you can do if you have more than a few minutes.
I wish I had your problem, sometimes. Everything I do means I'm not doing something else and I have to constantly make decisions.
Spend the time figuring out what you like to do, and then do some of those things.