Out of Control Weekend

I have to confess that I had a totally out of control weekend and ended up eating mindlessly. I have to figure out a way to get through my SCA weekends without losing control. It is so hard though, because we go for so long and then I get so hungry that I will eat anything and everything. How do I get control? What can I take that is on plan and will keep me satisfied? I think that I am going to have to invest in a good cooler and keep it stocked.