So, you’ve rooted your Galaxy Note and installed ClockworkMod Recovery.
Well, before you begin modding your newly rooted Galaxy Note and installing a bunch of new ROMs, I highly recommend you to make at least one backup of your rooted stock ROM.
Things can always go wrong but by having a backup ROM, you can always restore back to it no matter what.
Besides that, you can learn to backup/restore ROMs on the go with multiple ROMs using ClockworkMod Recovery. This will allow you to change ROMs without losing your personal settings