For a lot of people, interior design is about much more than simply slapping a coat of paint on your walls -- which is why we're willing to spend so much money on it. Even aside from interior design, we tend to spend a lot of money on our homes. Each year, a typical homeowner spends about 1% to 4% of their home's value on maintenance and repairs. What this means is that if you have a home worth $200,000, you'll spend around $2,000 on keeping it as it is each year. The older your home becomes, the