28 Reader Tips That Save Time and Money

After you've partially emptied a can of spray foam, don't throw away its straw; unscrew it and clean it out with WD-40. Just insert the WD-40's red straw into the spray-foam straw and give it a few squirts. Don't forget to wipe off the red straw with a clean rag when you're done.

—Jody Dingman, Columbia, PA