Trashcan Vent

This happens to me all the time. It's not necessarily because the trash bag is overfull, but as you fill the bag, the air at the bottom of the can gets pushed out and a vacuum forms. We need to equalize the air pressure between the bottom of the bag and the outside atmosphere.

So take your standard trash can

You don't want to just cut some holes in the bottom of the plastic insert. That would defeat the purpose of the insert: containing liquid spills.

Instead, use a piece of rigid tubing (this happens to be copper) left over from another project and your good friend, duct tape. Cut the tube so that there is about 2 inches of space above and below.

Trash bag goes in like so ...

And you won't even know it's there ...

Until you realize that you no longer have to have a tug-of-war to get your trash out of the can.