Each time I needed to lose the baby weight, I stopped eating after 6:30 p.m. five nights a week. The other two evenings were reserved for nights out. Most of what I'd eat at night was junk food anyway, so it took only two months to get my pre-baby body back..
As a general rule, arrive at the airport no later than two hours before your domestic flight is scheduled to depart. This is somewhat later than the typical suggestion of three hours for an international flight.
If you are flying international, a lot of airlines suggest that you arrive three hours prior to your departure time. Personally, because it's that early in the morning, I'd be at the airport about an hour and a half before your flight leaves (if you're flying domestic).