Head Umbrellas
As nice as an umbrella is, it’s a complete nuisance to carry around. When it’s not raining, you have to hold the umbrella like a sword, and nobody wants to randomly sword fight with you. Basically, umbrellas, though useful in Japan, can be a problem when walking around.
But if you have an umbrella that sits on your head, then your worries are over. Well, that’s if it doesn’t rain cats and dogs, and if you don’t mind getting your shirt and briefcase wet. Also, it’ll make you look like a child, but that’s probably the least of your worries if you’re seriously considering getting one of these contraptions.