Face it, you're going to forget to bring something inside after your next outdoor party.
A day or so later, it will start to rain. The thunderstorm will probably start in the middle of the afternoon, while you're at the office, where you'll look out the window and—suddenly remember that serving tray you abandoned on the patio. If it's a tin tray, it will laugh off a little water:
Above: The giant Galvanized Bucket with Rope Handles that you cooled your drinks in will be safe; $65 at Sylvester & Co.
Above: The oversized Rope Handle Tray, already weathered, will forgive you for leaving it outside. It's $55 from Sylvester & Co. With sturdy rope handles and a high 2.5-inch lip to keep glasses from spilling, the tray can ferry a party's worth of barware in a single trip.