A hobby is something that you enjoy doing in your free time.I think that hobbies help you not to waste your spare time doing nothing. most people choose a hobby to their liking.
One of the most popular hobbies is collecting things. This may include collecting badges and stamps, bottles and flowers. Wealthy people collect works of art or even cars.
As for me , i used to collect coins in my childhood. My collections includes more than five hundred coins from all over the world. my grandfather collects stamps his father started the stamp collection and then my grandfather inherrited it. There are very old and rare stamps in his collection.