I think you'll do ok on your trip b/c it's fun being away and you can always find things to do ... at home, times get boring and we nibble. Focus on the sights and activities and leave food for last. I lost about 5 lbs. the week of June just b/c we spent the week in FL and we were all having too much fun to eat... although we did go out EVERY SINGLE NIGHT .. I just chose a salad or a nice cut of meat with vegies. I think all the walking and swimming burned off a lot of calories too!