#24: Useful? Yes. Appropriate? No.

There are certain things that get taken away at airport security that aren’t necessarily bad things, but perhaps don’t suit the nature of flying. No one ever said carrying more than 100ml was a dangerous thing to do, but for some reason, it is against many airline policies to carry more than 100ml in liquid, for example.

Sure, this swiss army knife phone case looks like a pretty handy thing to have on you in certain situations, but it isn’t something someone should be allowed to carry on a flight with them. The next time you fly, think about what you should be packing in your carry-on luggage and in your big suitcase.