i let home/tc in .filetool.lst, but put everyting i don't want to be saved and which belongs to /home/tc in .xfiletool.lst; i symlink most of the directories which apps need (in order to keep them personalised; it regards email, browser, office directories and so on) from an external drive to /home/tc, and put all personal data on the external drive (they won't be saved in the backup); i am calling extensions with scripts (also symlinked from an external directory to /home/tc); as a result, my backup contents only the default files already available in /home/tc which i might have personalised either (such as .setbackground, .xsession); that strategy enables me to exit without doing a backup at each time, with the backup sized at less than 1 MB; i can boot very quickly, and then i load preferences and extensions using my scripts (i have several scripts which i can use depending on my needs)