When tools are new -- all shiny and sharp -- they work well. But once you use them a bit and put them away, they get funkier and rustier, day by day. Soon, they become a mass of rust and goo and don't get the job done like they once did. So, from deep within the Carey Brothers' vault of penetrating conclusions, we bring up our first pressurized solution. Yessir, it's the handyman's friend: a lubricant, scuff remover, sticky label remover, and No. 1 all-around rust- buster -- WD-40 in a can. To keep tools clean when you put them away, put a soft towel or piece of carpet in the bottom of your tool box, and every so often give it a spritz to keep rust at bay. A charcoal briquette helps absorb moisture, too. To clean rusty nuts, bolts and screws, give them an overnight soak in a cola soft drink. These are all good rust-busters that clean in a wink. And that's the On The House tip for today.