This is pushing the bounds of a "comedic" thing I would ban, but Ricky Gervais and all programmes, shows, or jokes associated with same. There are a couple of other attempted comedians I would ban, but they've already been namechecked in this thread and yes, I know comedy is subjective and I apologise for any offence!
Perhaps more in the spirit of the thread, but while I was making myself a ready meal for lunch I was reminded that I wish to ban film lids that just tear when pierced with a fork, leaving bits of plastic in your tuna pasta bake...