Right now, with me- my killing time, is trying to re-learn advance math... using the internet with free lessons, worksheets, and some free books (Pre-Algebra for Dummies for an example); But that has a goal attached to it as well... It isn't humor though, though some may find it fun in their own way (and is stimulating for my brain).

Some times I read about history, or places too on line. Or how to do things too (DYI)

More so these days I haven't been pouring myself into PC as I did at one time, though it can be helpful it can be counterproductive as well.

I know pintrest can some times be neat to kill time, to see different art in my case with that. There is an abundance of subjects you can look at on there.

Anything you particularly like to do or learn about?

Well wishes your way.