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There is an app in the Play Store called My Backup that will back-up almost everything on your phone including "Android Home" which is the configuration of your home screen including shourtcuts and what-have-you.
There are 3 different versions I believe...a paid version, a root version, and a free version. The root version is also free it's just got some other options that the free one doesn't have.
https://play.google.com/store/apps/details?id=com.rerware.android.MyBackupRoot
Make sure you restore all of your apps before you restore your Android Home or else it'll leave blank spots where your missing apps are.
And, as the other person mentioned, there are launchers you can get from the Play Store that have this functionality built in. I know GoLauncher EX is one of them that does this.
https://play.google.com/store/apps/details?id=com.gau.go.launcherex