I guess it really depends on how handy, knowledgeable you are and whether you have the time to do the repairs yourself or not. I do work inside and outside the house. Basic car maintenance (oil change, spark plugs), plumbing around the house (replacing toilets, faucets), wiring (ceiling fan, dimmer switch), yard work (tree trimming, lawn mowing). I'm one of thoese DIY guys so I have quite a few set of tools to say the least.
My brother on the other hand, he has a set of +/- screw drivers, a small hammer and hand saw. He calls his friend or hire someone for something as simple as hooking up home theater speakers.
You can probably go to a HomeDepot or Lowes, or even Walmart and pick up a home hand toolkit, like one of these:
http://hand-tools.hardwarestore.com/...tool-sets.aspx
Before you attack any home project, do some reading and research online if you have never done it.