When installing in-wall speakers, use a drywall saw to cut the hole. A utility knife will make the cleanest cuts in drywall, but a utility knife can be difficult to control by a non-expert. Electric rotary saws make cutting drywall physically easy, but they too can be difficult to control. A simple, inexpensive drywall saw (about $10 at your local hardware store) is the best bet for beginners. The speaker's frame will cover up any rough edges.
Use the cool-down cycle to allow the clothes to finish drying with the residual heat in the dryer.
The most important part of a ceiling fan is its motor. High-end brands usually have the most energy-efficient, well-designed motors, with die cast motor housings. Don't buy a multi-speed fan with only one capacitor inside its motor. A quality fan able to handle three speeds should have at least three capacitors.
Engine grime can be difficult to wash off of your hands. If you don't have a hand cleaner handy, your kitchen cupboard probably contains a solution. Reach for either a vegetable or olive cooking oil and spread a dab over your hands. Rub your hands together, then wipe off with a paper towel. Cooking oils will also help remove oil-based paint from hands and arms.