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.
The airlines usually expect you to arrive 90 minutes prior to a domestic and 2 hours prior to an international flight. As much as it stinks, you should be there probably about an hour to two hours early. That way you don't have to worry about lines, baggage claims and whether or not your flight is on time or what not.