Savings and Investments

I'm the kind of guy that likes to know that my money is safe. Thus I use banks. I have three bank accounts for three purposes and also have a stash pot in my room for all the instant cash that I need...for example when I go to the pub or the club.

One of my accounts is for short term savings (e.g computer parts)
One of my accounts is for larger savings (e.g holidays away, car)
One of my accounts is for the future (as in, when I come of age)

What do you think to this idea, and do you use banks yourself?