At Corpowrite Asia, we spend a lot of time deleting spaces -- specifically, the second space after a period, question mark, exclamation point or colon. As this article points out, using two spaces is as obsolete as floppy disks. (They even both became outdated around the same time.) And the worst part about a business insisting on two spaces in its copy? It makes its brand look outdated, too.
Special thanks to Rachael Bradbury for spotting this one.