Start with level, plumb and flat walls
Add new studs beside the old studs
Old walls are often crooked and out of plumb. One good method to fix the problem is to add new studs alongside the old ones, making sure the new ones are plumb and aligned. You'll be glad you did when it comes time to install cabinets and trim.
Got bowed studs? Here's how you can fix them.
Be positive the power's off
Always check before doing electrical work
When you're doing electrical work, don't assume that because you flicked a switch or flipped a circuit breaker the power is off? always double-check. Buy a noncontact voltage tester and check all the wires in the box before you do any work.