When you finish your next project, instead of throwing away unused building materials, donate them to a non-profit organization and let someone else put them to a good use.
Here's a way to get more life out of an old hacksaw blade. Mount it on the side edge of your workbench with about half the width of the teeth sticking up over the top surface. This will give you a handy cutting tool. Make sure that the location of this cutter is both easily accessible as well as away from frequent brush up traffic.
If your home renovation requires new walls, you may want to consider using metal studs. They have many advantages in a basement area, where moisture and insects can be a problem. Metal studs are easy to assemble, and you can pre-cut several at once with a carborundum blade on a power saw. Then, they quickly fasten together with self tapping-screws. Metal studs are lightweight, fireproof, and recyclable.