That's a great question! A floppy or sunken trash bag in a tall outdoor can is a real nuisance. The best way to mount it securely depends on your can, but a few methods are consistently effective.
The most reliable solution is to use bungee cords or elastic loops. Simply place your bag in the can, pull the liner's edges over the rim, and then stretch a bungee cord around the circumference to hold everything snugly in place. This creates downward tension that prevents the bag from slipping.
For a cleaner look, heavy-duty plastic clips or binder clips work wonders. Space several around the rim to pinch the bag securely. If you want a permanent fix, consider installing hooks or cup hooks just below the inner rim of the can. You can then hook the bag's drawstrings or loops onto them.
A clever DIY hack is the pool noodle trick. Slice a section of a foam pool noodle and fit it inside the top of the bag's opening before placing it in the can. The noodle creates friction against the can's walls, helping the bag stay up.
The key is ensuring the bag's opening is fully extended over the can's top and using tension, friction, or anchors to combat gravity and wind. Avoid overfilling the bag, as weight is the main culprit for pull-down. With one of these simple methods, you'll keep your outdoor trash area much tidier.