That's a common and frustrating problem! A lightweight, half-empty bin is a prime target for wind or curious animals. Don't worry, there are several easy and effective solutions.
First, consider adding weight to the bottom of the bin. You can place a few bricks, a concrete block, or a heavy rock inside the bin before you put your trash bag in. For a cleaner look, you can even use a sandbag. This lowers the center of gravity and makes it much harder to knock over.
Another great method is to secure the bin to something solid. If your bin is near a fence, wall, or post, use a bungee cord, a ratchet strap, or a short length of rope to tether the handle or lid to that stable object. This physically prevents it from falling.
You can also try changing its location. Place the bin in a more sheltered spot, like a corner of your house, garage, or behind a fence where it's protected from strong gusts of wind. If it's on an uneven surface, move it to flat, level ground.
Finally, if you're frequently dealing with this, consider investing in a specially designed trash can anchor or stake that you drive into the ground and attach to the bin. Some heavier, commercial-grade bins are also less prone to tipping.
Start with the weight trick—it's often the simplest and most effective fix. With a little effort, you can have a bin that stays upright, keeping your yard cleaner and more tidy.