6. Never Buy Generic: Paint
One way generic products are made cheaper is by watering them down or making them thinner. Generic paint for your home is a bad idea. It's often thinner and will take more coats to cover an area. It may also chip and fade sooner than brand-name paint. And as far as home improvements go, paint is inexpensive, and is worth the cost for a quality brand. It's the labor that's expensive.