I am copying all my receipts too, shows date of purchase, so if anyone thinks it was illegal I have proof it wasn't. Just a CYA move on my partMay stick my nic receipts in freezer so I have a couple of copies in baggies LOL I also have all receipts online so handy if I loose anything.
I also have hard copies of all of mine, as well as saved files of them on my computer. Planning on putting 1 hard copy of each receipt in with my stash stuff. Could be of help for whoever has to decide what/how to do something with it all at that time.