One of the most important “rules” of paleo is to plan ahead. Since the pre-packaged paleo options are almost non-existent, this means a lot of cooking and prep work. My advice would be to have a prep day. Take one or two days a week, hit the grocery store, and plan your menus, (snacks included). It only takes a short amount of time to fill some containers with trail mix, jerky, or veggies so you can just grab them on the way out the door. Having these snacks on hand can go a long way to preventing a trip to a vending machine or drive through, simply because you are so hungry you can’t wait to eat until after dinner is cooked.
Planning ahead also prevents the inevitable “what’s for dinner tonight” followed by staring blankly into the refrigerator, then giving up and ordering take-out. If you already know you are having chicken Monday, salmon Tuesday, steak Wednesday etc. it takes the stress and guesswork out of meal planning after a long day of work, school, or wrangling the kids. And don’t forget that leftovers are your friend. If the recipe makes enough for four, but there are only two of you, it’s a bonus. Now you have dinner for two nights, or dinner tonight and lunch tomorrow, which means one less thing you have to worry about.