Outdoor laundry sink.
This single item has made my brewing far easier.
I used to hate the end of brewdays, and all my waste water was all over the place. Not anymore. I have the drain hooked up to a garden hose, so no waste water anywhere near me. I didn't bother getting a faucet for it, no need. I just put my garden hose through it, with a quick disconnect, to switch from my water filter to a spray nozzle.
If you brew outdoors, and you don't have one, get one. But make sure you find some adapters to hook it up to a garden hose!
