In the last video I referred to a washcloth-type-thing that is made for hot weather that you could use to stick in your baby carrier in hot weather. I don't know why I seem to remember it being called a "froggie" or something- but I think I'm totally whack. Must be the teething and lack of sleep that has be making things up. But I did find something similar on Amazon here so you can get your froggie (that's what I'm calling it anyways).
This video also covers eating on the trail- pretty similar to eating when you're out and about, but you may just want to make sure you feel like you know what you're doing before you go outside. Let me assure you- you know what you're doing! You got this, momma! (or dadda, or grammy, or grampie...)