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.
Domestic - 90 minutes before your flight International - 120 minutes before your flight BUT..if you're traveling on a heavy day (ie Wed, Thrus night, Friday, Saturday) during high capacity times (mid-day thru early evening) then show up at leastr 120 min early for domestic, and 160 minutes for international flights.