We all know that we need to make sure we have all the tools and know how do what needs to be done. There are some areas we don't think about. If you are working on something and need to shut off a breaker, does it impact anything else? Will your children suddenly not be able to watch television? Will your wife not be able to do the dishes or cook dinner?
I remember a time when I needed to shut off a breaker and that ended up taking out the stove. My wife had just put something in the oven and couldn't figure out why it suddenly shut down. I ended up having to apologize and order pizza.
It's the little things can be the major pains. I once had my furnace replaced in the dead of winter and take into account that my heat would be out for eight hours. It sounds like a no brainer, but it totally slipped my mind. About four hours into the repair, I suddenly started to get cold...so did my wife and children. Thankfully, I had an electric heater and everything turned out OK. When it comes to home improvement, it pays to sweat the small stuff.