For a no-frills outdoor trash can in an alleyway, I'd suggest focusing on durability, security, and simplicity. You need something tough that can handle the elements and occasional bumps.
My top recommendation is a heavy-duty plastic or galvanized steel bin with a secure, locking lid. Plastic options, like those made from resin, are lightweight, rust-proof, and easy to clean. Galvanized steel is incredibly sturdy and rodent-resistant. Avoid fancy designs or small indoor bins.
Look for these key features: A simple, attached lid to keep rain and pests out. A dark color like black, gray, or green to hide dirt and blend into an alley setting. No wheels are necessary for a fixed alley spot; a flat, stable base is better. Capacity-wise, a 32-gallon to 44-gallon size is ideal—big enough to reduce frequent emptying but not too heavy when full.
Simply place it on a level surface in your alley. For extra security against tipping or theft, you can use a bungee cord through the handles or a simple anchor kit. That's it—a straightforward, functional solution for keeping your alleyway clean.