Silicone dries quickly and invisibly and doesn’t attract dirt, making it a good lubricant for drawer rollers, window tracks, door locks, bike parts, and other plastic, metal and rubber surfaces. It also helps protect metal against rust. Lithium grease is a long-lasting, weather-resistant (though somewhat messy) lubricant for garage door tracks, car doors and latches, and other metal parts that get heavy use outside. Check out 20 brilliant ways to use WD-40, another must-have lubricant for home repairs.
How to DIY it: This job can be messy, so protect nearby surfaces by covering them with plastic or cardboard. Spray the springs with garage door lubricant (about $7 at home centers). Don’t use oil, grease, or other lubricants. They may be cheaper, or you may have them on hand already, but they won’t work as well and tend to pick up dust and grit—just what you don’t want on moving parts.