I always rewash them by hand with very mild detergent, but there are solutions made. I put the short strips back on reels to fully rewash.
Sadly fingerprints are the worst to remove, since they are pure grease, so some kind of detergent has to come into the picture.
my posts have an expiration date - read 'em quick!
"Conformity or rebellion? Neither one. Both ways are simple-minded - they are only for people who cannot cope with contradiction and ambiguity.”
― The Diamond Age