How do you solve a rubik's cube with out ruining the side you already finished?

Q: How do you solve a Rubik’s cube with out ruining the side you already finished?

A: Hi Ninja,

These videos show what is pretty much considered to be the best beginner method:
http://www.youtube.com/watch?v=HsQIoPyfQ...
http://www.youtube.com/watch?v=IW_BBp3FP...

Or you can use this site to get it back to the original solution. Not good for learning, but good for returning to the start.
http://www.wrongway.org/cube/solve.html

If you want to know more, you can read up on the wikipedia entry:
http://en.wikipedia.org/wiki/Rubik's_Cub...

Here is the official site which has its own simple solution instructions http://www.rubiks.com/lvl4/commun/cbeclb... and the original solution booklet that comes with the standard cube; http://www.rubiks.com/World/~/media/File...

There is a beginners forum on the speed solving page that addresses many issues, like how and when to lube the cube for smooth operation. Take a look:
http://www.speedsolving.com/forumdisplay...