Dr Hutch has a little piece in Cycling Weekly about a reader who has swapped his front wheel round left-side for right-side etc after every ride for 40 years "to equalise the wear on the rim in case one brake block is pressing harder than the other".
Hutch adds that if you do the same thing today with disc brakes it will prevent rotor wear almost completely.
Dr Hutch's column is the only thing I miss since I cancelled my subscription to Cycling Weekly a couple of years ago.