Before desktop and laptop computers, there were typewriters. Remember? Well, we do, and we even use them from time to time to type up to-do lists and letters to be sent in the mail. (Yes, people still do that, too.) Our favorite place to browse for these time-tested machines is the Mesa Typewriter Exchange. Bill Wahl's shop in downtown Mesa carries workable manual and electric typewriters, including the most popular back-in-the-day brands such as Underwood, Royal, and IBM. Unlike thrift-store typewriters, which have zero chance of working, Wahl personally repairs and puts 50-plus years of typewriter TLC into refurbishing and repairing the machines. Business hours are limited, so make sure you call ahead before stepping back into the past.