I think everyone's pretty much nailed it.
Planning ahead is critical for success in just about anything...including losing weight - especially when you're in the 'learning phase' (that's what I consider the part of your journey when you're actually beginning to lose weight...learning your new healthy lifestyle...KWIM?).
I think a lot of the time when we binge or overeat or graze or whatever you want to call it personally

that's not because of hunger - it's usually what I call 'recreational eating' aka "boredom eating" aka 'habitual eating' or 'because it's there'.
Making plans to be OUT and ABOUT (preferably getting some exercise) is an excellent idea. It's the LAST HOLIDAY WEEKEND of the summer...beautiful weather in most places - spending three days off sitting in front of the idiot box watching endless teevee reruns is such a waste, SUCH a waste.
At the very least, go out for a walk. Ride a bike. Go skating. Do SOMETHING that keeps you from sitting in the house with nothing else to do except watch TV, surf the net and visit the kitchen! Even if you don't WANT to do something active, grab a book or magazine you've been planning to read, go to the park or the beach or somewhere away from food, and have a quiet reading session while getting in some fresh air. Or if you don't have a book to read...bring a pen and journal down your thoughts and feelings.
I know many of us have BBQs and picnics to attend. Again, plan ahead - bring a healthy dish to share. If there's something yummy have a modest portion, unless you know it's a 'red light food' that you have trouble moderating. (yup I have a mental list of foods that are 'all or nothing' for me...I find that as long as I stay away from the food in question, it doesn't bother me).