Excellent link, PrakashK, to Uri Guttman article about hash slices! Now I got it!
I was told that one is not using perl if not using hashes, and I was trying. Now I was enlighted (again): hash slices are really cool! I have couple ways how to use them. Must-read article!

pmas
To make errors is human. But to make million errors per second, you need a computer.