can I backup my installed software on openSUSE ?

hi , I use openSUSE 13.1 with KDE
I’d like to know if there’s a way to backup installed software on the system so that i can reinstall it after reinstalling the distro , instead of redownloading the packages allover again after reinstalling openSUSE , especially that i use a download-limited,slow internet connection…???

You could make a clone image either of your entire HDD or just a particular partition
Clonezilla can do that