As programmer you solve a lot of coding problems every day. You browse the Internet to find solutions and when you find them you implement them. And what then? Unless you have phenomenal memory you forget the solution and if you need it again you start to look through thousands lines of your code to find it or go googling again. To avoid loosing your precious time you better keep your solutions in one place where you can get it anytime very quickly.
The right place for this purpose could be hintsbox.com. This site is designed specially for programmers. Here you can store your solutions as hints. Moreover you can get comments or even better solutions from other programmers.
The site is still very young but worth trying.