That's a great question many environmentally conscious city dwellers are asking. The short answer is: yes, it can be surprisingly straightforward with a bit of planning. A standard municipal trash can doesn't come with built-in separation, but you're not stuck with that.
The easiest approach is to use a separate, free-standing bin placed right next to the main one. Clearly label it for recyclables like paper, plastic, and cans. For a more integrated look, you can attach a smaller container directly to the side of the existing trash can. Using sturdy straps, brackets, or even heavy-duty adhesive hooks (for lightweight compartments) can secure a bin or a specially designed side-saddle recycling caddy. The key is to ensure it's firmly attached to prevent tipping or theft.
For a permanent solution, some people use bolts or rivets, but check local regulations first, as modifying public property might not be allowed. For your private outdoor can, this is a viable DIY project. You'll need basic tools like a drill, measuring tape, and your chosen attachment hardware. The main challenge is ensuring the added compartment doesn't interfere with the lid or the trash collection process.
Ultimately, the "easiness" depends on your desired outcome. A simple companion bin is effortless. A physically attached unit requires more effort but creates a unified system. Either method significantly boosts recycling convenience, encouraging better waste sorting right at the point of disposal. It's a small step that makes a big collective difference.