RIGHT FROM THE GET-GO, IT SHOULD BE NOTED THAT back in the day when Polaroid TIME ZERO film was available, I probably-I never counted them-made 3>4,000 pictures using one or the other of my 4 Sx70 Polaroid cameras (still have them).
Most of those pictures could be categorized as "family" snapshots. On the other hand, a fair number of them were made for commercial / editorial assignments and as TiME ZERO/SX70 Polaroid art. A quite in vogue genre which, after the SX70 was no longer availabe-TIME ZERO continued to be available-drove the prices of used SX70s to stupid levels. I was fortunate enough that, with the exception of my first photo store bought SX70, I picked up my other SX70s at flea markets-pre internet / ebay /et al-for no more than $20US each.
In any event, I was truly depressed-well, at least bummed out-when TIME ZERO film slipped into the annals of photographic history. That written, I have managed to save all of my SX70/TIME ZERO pictures in 2 huge (approx. 20x30inch) plastic bins (with cover). They are all just chucked in there willy-nilly which is a perfectly acceptable form of archiving TIME ZERO prints.
All of that written, I have come across an iPhone app-RTRO from Moment-which produces a reasonable representation of TIME ZERO film. That is, except for one big exception - color rendition. I have created a work-around for that exception in the form of a saved custom Photoshop CURVES setting which gets a file in the ball park, TIME ZERO wise.
So, while I can produce an image/print with a pretty good look and feel of TIME ZERO film/prints, The thing I really miss is the whirl and mechanical noise of a print being ejected from from an SX-70 camera and then watching the print develop in your hand.