Rewinding VCR tapes. Balancing the tonearm. Calling collect. Formatting floppy disks. Loading film into a camera. Numbering punchcards. Getting up from a couch to change channels or volume. Dialing. Remembering phone numbers. Using carbon paper. Rewinding a tape with a pen. Sending a telegram. Sending a telex.
More in this great list of obsolete skills.
-- via textually