Five Fairly Fun Fixes For Free by [[Joe Van Cleave]]

Advice for typewriter ribbon printing, especially as silk ribbons age and more quickly gunk up the loops or letters like "e" or "a". Nylon ribbon and a thin plastic backing sheet can be helpfu.

Use of bookbinder's glue on fabric of typewriter cases, then layers of shoe polish.

General advice for replacing feet on typewriter cases.

Small incremental improvements to your typewriter can be easier and more sustainable than trying to do everything at once.

How A Rusty 1930s Royal Typewriter Is Professionally Restored | Refurbished | Insider

Done by Lucas Dul. Some particularly interesting portions on adjustments after restoration. He generally touches on the order of adjustments he makes, but in brief rather than completely.