I was blown away the first time I used a power washer. Without soap, just the hose water spray, it was able to make our decks and siding look like new again when I thought we were on the verge of having to replace it all.

I highly recommend power-washing exterior wood and/or anything growing funky outside. But if you purchase a washer you might sacrifice power in order to save some money since you only use it maybe once a year. You can rent a high-quality machine for a nominal cost and it will make short work of all of your needs, and you’ll never have to concern yourself with maintenance of the machine.