Personally I only play one mod at a time because my attention span is so short I would forget what each mods is about.
That said I used to play more than one mod at a time and did the same with books too. However, now that I am a going-gray gamer, I’m finding that a bit harder.
Maybe it’s more to do with my personality than my age?
I am working on a bunch of project related to PP/gaming at the moment, so it’s not as if I can only concentrate on one thing at a time, it’s just I prefer to really get immersed in what I am playing.
Now I think about it, I prefer to watch my TV shows that way too – all in one go.
What about you?