This is an issue I see often, fellows that take on a project without the proper gear. The right tools make a slow demanding project a lot faster and easier. They often mean the difference between an ok job and truly professional finished product. I understand that most people don't have the need of a well stocked tool shed, but if you're going to tackle projects tougher than painting the bathroom, there are some tools that are a must have.
I absolutely hate trying to do a job without the right equipment at hand. Get your material, set up your gear, think through the steps, then get the job done.
Before you all beat me to death, I know my requirements are a lot different than most peoples, but I honestly believe a basic $1500 tool kit is a must for any weekend warrior. Good gear will last a homeowner for many years, and save you 20 times it's cost.