How to avoid accidentally sending a message before you're ready

I feel bad for being so off topic lately, so here's a tip that I use nearly every day in Outlook:

I often spend time carefully crafting an email to an important audience or with content I need to get exactly right/complete, so I want to review it several times. I'm also fairly compulsive in that I like to have the recipients pre-addressed before I start writing it, so that in case I close it and save it to the drafts folder, I can easily see part of the recipient list in the view to help remind me what the mail was about.

I often hit Alt+S by mistake while typing, which could be a very bad thing if the mail gets sent prematurely. I used to address the message, resolve the recipients, and then remove them from the To/Cc field and put them at the top of the body until I was ready to re-copy them into the appropriate fields.

A few years ago I stumbled on a much easier way to satisfy my obsessive compulsive behavior: type the recipients into the to/cc field and then type some junk like 'jaskdlfadsf' into one of those fields as well. If you accidentally hit Alt+S, the message won't send because it can't resolve jaskdlfadsf. Of course, this only works if you don't work with Homer Jaskdlfadsf (and his wife, Deadbeef).

I'm sure this is ah-doy obvious to some, but since I didn't figure this out right away I thought it might help someone else, possibly even someone as compulsive as me. Anyway, time to go wash my hands. :-)