If you are making up sliding jigs for the tablesaw or other tools, consider steel rather than wood for the guide runners. Steel runners won't swell like wood will during high humidity to cause sticking and binding. You can ask local steel suppliers for cold rolled steel to fit the grooves, or use runners from dismantled miter gauges. Steel takes a little more effort to mount, but will provide years of hassle-free service.
Spring is a good time to paint fences and the exterior of your home, especially wood surfaces. This way, they will be protected from summer heat and sun. Wood decks should also be sealed once a year.