yes I tend to increment as well - so after a while I save 'file-date.xar' as say, 'file-A-date.xar' and so on - I have been doing [though not with xara] since the days of widows 3.1 - it would be good if Xara allowed us automatic incremental saving, it has been mentioned on Dear Xara I know

Backing up to another hard drive is a good point also 'data you only have one copy of is data you don't care about' as they say