How many businesses do you have?

[japerry]

I was just reading Dons last post and it got me thinking...
How many businesses (or income streams) do you have?

In particular, Don, and everyone else - How do you manage these?
I have a real estate investment business, a real estate ad magazine, and a small (soon to be big) marketing business.. plus a full time job.

How do you keep things straight..

Jim talks about having a couple of businesses as well -- whats your secret? What do you systemize?

Thanks,
Jason