That's a super common and frustrating problem! A lid flying open can make a huge mess. Don't worry, there are several easy and effective solutions you can try.
First, consider the placement of your can. If possible, move it to a more sheltered spot, like against a fence, wall, or the side of your house where it's protected from the prevailing wind.
For a quick and adjustable fix, use bungee cords or heavy-duty straps. Hook one end to the handle or side of the can, stretch it over the lid, and secure it to the handle on the opposite side. This creates a strong hold that's still easy to remove on trash day.
Adding weight is another great method. You can place a heavy brick, a large rock, or a sandbag on top of the lid. For a neater look, consider attaching weights like diving weights or small sandbags to the *underside* of the lid itself with strong adhesive or straps.
If your can has handles, you can use a simple carabiner or a lock to clip the lid's handle to the bin's handle, preventing it from flipping all the way open.
For a more permanent purchase, look for trash cans marketed as "wind-resistant" or "animal-proof." These often have locking lids, weighted bottoms, or latches that provide a much more secure hold against the weather.
Try one of these methods, and you should have a much more secure—and much less messy—trash setup!