The following sources were consulted in the preparation of the article “13 now-useless skills every person over 40 developed that no one even uses anymore.”
- How T9 Predictive Text Input Changed Mobile Phones
- What Is Shorthand & Is It Still Used?
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- How to Fix an Audio Cassette, Audio Cassette Repair Guide
- How do I send a fax?
- Writing Business Letters
- How To Load Any Film Camera
- How do you use a rotary phone? We have the original step-by-step booklets from the 40s and 50s
