Here's how to make a bad commercial: Have some person standing in a kitchen/office/locker room explaining to the person behind the camera why they're getting a divorce/handing out a pink slip/putting in a sub off the bench, only for the viewer to then find that the person they're talking to is actually a broom or mop.

And if you want to make the commercial worse, have said person dance around the kitchen/office/locker room with a Swiffer Wet Jet to the tune of bad Blondie lyrics.