Some recepients of the transcripts we product require single spaces, while some require double.
To ensure you do it right, in MS Word go into Tools, Options, hit the Spelling & Grammar tab, then click on Settings and there under Require is "Spaces required between sentences:", your choices are 1, 2 or don't check.
We found an autotext program that is awesome. And we know you can do a lot of this in the AutoCorrect of Word, however this program goes beyond the capabilities of just substitution. The program is Phrase Express and you can get it at Autotext - Clipboard Utility - Snippets Organizer. It is free for personal use. We find this program so invaluable. One of the nice things is the ability to set up phrases on the fly. You type it, highlight it, hit ALT+CTRL+C and the new phrase box pops up. You just click on what keys or characters you want, whether you want it as rich formatted text or plain text and hit enter. Then every time you hit those keys or characters your phrase will automatically pop up.