Renovating your home can increase its resale value. But don't expect a dollar-for-dollar return. Some upgrades (an extra bathroom, for example) pay off; some (like swimming pools) don't pay off at all. If you want fine marble in the foyer, spend away. But don't count on buyers being willing to pay as much for it as you did.
Don’t throw away that sawdust. Keep some in a coffee can to throw on workshop spills. It’s also great for throwing on icy sidewalks in the winter.