Due to being an island, Japan's main source of food is seafood. Sushi is one of Japan's specialties and can be made in a variety of ways. Popular dishes include Nigiri, Gunkan, and Norimaki. (source : japan-guide.com)
Another type of popular Japanese foods are its sweets. Some of the most famous are Pocky (bisquit sticks covered with a type of icing), Pucca (sea-creature shaped pretzle-like snack filled with chocolate), and Ramune Candies (made after a popular drink called Ramune that's very sweet and comes in a glass bottle with a marble in the neck). These items are shipped around the world and can commonly be found in a local store.
In the common Japanese household, many things are different from what you may be used to. When you enter one's home, you take off your shoes at a front square, switching to slippers (common colour is green).
When you need to use the restroom, there is another type of slippers available called "Toilet Slippers". They are often decorated with cute characters but I believe the most popular ones I've seen have a silhouette of a man and woman.
There is a kind of Japanese toilet that a lot of people aren't used to. Most of it is "in-ground", so for use, you must squat, fa...