Question for an electrician - HELP!

I haven't been around here much lately, but I have a good reason...

We bought a house. An old house. A 90 year old house...

I've been spending every last minute of my waking time on this place with very little time for the simple pleasures in life (beer and cigars).

I'm a pretty handy person, but when it comes to electricity, I'm riding the short-bus.

So on to my question:

We've been tripping two of the breakers very often. One seems to control all of the 2nd floor and attic room along with the bathroom and laundry room. The other seems to control all of the outlets along one wall, which is where our toaster over and microwave are. I've figured out what all all of the breakers go to except 2. So we might have 2 open, but I doubt it (will probably do some testing this weekend). We've been running electric heaters due to insufficient insulation (another project I'm working on) and hate having to go the the basement crawl space to reset the breaker.

Anyway, what are the options for cheaply fixing our issue of having too many outlets connected through one breaker?