I just fold my chart to suit the trip I am flying and used to take it home after work so the wife could iron out the creases. She stopped doing that when I forgot to clean off those heavy chinagraph lines after a very busy week and she got nasty brown stains in all the underpants she ironed afterwards.
(Lucky escape for Upland Goose, who tried to steal my chart yesterday
).
P.S. What's all this about new charts sometimes being issued? I never heard that one before and I've been flying since 1972.