Bento. Again, pretty if you're that way inclined, but really, I have a life to get on with, a house to look after and Ice Road Truckers to watch. I have neither the time nor energy to make pretty scenes in Squeaky's lunchbox. I can think of many more productive ways to spend my time, starting with blogging a bit more often.
Elf On The Shelf. We have one of these creatures, but only because I won him a couple of years ago. I forget to move him more nights than not, so he spends days sitting in one random place before I get consumed with guilt and shift him to somewhere in the Christmas tree again. It's all I can do to move him from the clock to a picture, never mind setting up entire mischievous tableaux on a daily basis. Also he looks a bit evil.
Marshmallow Fluff. What do you actually do with it? It's next to the Marmite and Nutella in my local supermarket, so on that basis, I guess you spread it on toast or sandwiches. But, marshmallow? On toast? Even I have some limits. Not many, I must admit, but marshmallow fluff pushes the boundaries too far.
Decaf Coffee. The whole point of coffee is the caffeine. Without it, you might as well drink hot water. See also, decaf diet coke, alcohol free lager, etc.
Harry Potter, Star Wars, Spider-Man etc. I have never, and do not plan to start now.
Kids TV channels being on while kids are at school. CBeebies and the baby channels I will tolerate. But those aimed at school age kids? Unless it's the school holidays, NO! Ok there will be some kids off school ill, but that's why we have proper telly. Bore them senseless so they want to go back to school quicker. If they can spend all day watching Barbie/Turtles/Hannah Montana, they're going to string it out as long as possible. Jeremy Kyle exists for a reason.