So, for anyone in school, this might be easier, but for me I've been working for five years at this company. Right now I've got two waitlists and I expect more. My friends are "cheering me up" by telling me stories about people who finally got accepted a few days before the start of school. I really don't want to be put in the position of leaving my job in a hurry, not to mention trying to move in that time.
Anyone have experiences they'd care to share?
Depends on how you've "set the table" with your employer. The key question is: does your work (i.e., your direct boss) know you've been applying to med school? If yes, then just tell them right now up front, "Hey, I'm waitlisted and I honestly don't know what may happen. I may need to leave on short notice but I will do everything I can to wrap things up before I leave."
If, on the other hand, you've been secretive about your applications and work is in the dark about it, then you need to ask yourself: "if I don't get accepted anywhere, will I still keep this job?" If the answer is "No, I'm leaving whether it's for med school or something else" then you can just give notice for some reasonable period whenever you want and go on to your next stage of life, then wait for final decision on your acceptances. You should probably start a backup job hunt too.
If, however, your plan is to stay at your present job if you don't get into med school, I'd advise you to keep your mouth shut until you have a definite acceptance in hand. Then you tell them what's happened and that you're leaving as far in advance as you can. If that's 48 hours, so be it. It may create some discomfort, but fnck 'em -- you don't owe them your life. If you're planning to go to med school, you apparently aren't thrilled with your present job anyway.
Don't worry about moving. You'll figure something out. If you're single, just pack up and go. It'll work itself out. Schools always have lists of houses/apartments/roommates. If you have a family, maybe your spouse can stay behind to wrap things up and you go ahead to start school and scout out a new place.
Good luck!