[gtmethod3]

Anyone know of a way I can take a "snapshot" of my current ROM including my settings, all ROM data, contacts, programs, etc. So let's say I flash a new ROM build, don't like it and want to go back to exactly what I previously had. (versus reflashing old build, redoing all settings, installs, and email/contacts)

I've heard of Sashimi but not sure how well it works/fulfills my needs.