MD PA stands for Medical Doctor, Professional Association. The Professional Association designation is a legal term used to describe a separate legal entity, much like an incorporated business.
Uber launches Scheduled Rides, so you can (finally) book a car in advance. users will be able to schedule a pickup anywhere from 30 minutes to 30 days in advance.
Basically what I'm asking for recommendations in how far in advance to buy airline tickets. How much would I risk in waiting for the 2-3 week mark to see if I can grab some savings seen in my test. Naturally it would bother me if the prices went up a lot instead.