For a ceiling fan to move the right amount of air, its blades should be set at a 14 degree angle. Blades set at a 10 degree angle will simply slice the air, while blades at a 20-degree angle will meet so much resistance that the motor may burn out.
When reopening your pool for a new season, make sure your pump and filter are working properly before adding chemicals to the water.
A 4-ft. T-square for drywalling can come in handy for other projects. Besides being helpful in drywalling, it can be useful when laying out patterns or cutting on full sheets of plywood or particle board. The square is accurate, stable and will give you a full 48-in. straight line. Some newer versions come with a head that can be adjusted to various angles, then clamped in place.
What size do you need? Many experienced carpenters use a 16 oz. claw hammer for most jobs, but also carry a 20 or 22 oz. framing hammer for their heavier nailing jobs requiring big spikes. For lighter work, a 13 oz. curved claw hammer can be useful. Even a 7 oz. hammer will come in handy for smaller jobs like making picture frames.