I'm not a parent but I've said before that starting to carry a small 1.5L fanny/waist pack daily has really revolutionized the amount of ammo I can carry easily and allows me to carry other medical essentials without having to think about it.
I think getting a small daily bag is one of the best things you can do to improve your routine. I can carry a leatherman, earpods, a phone backup battery etc all without thinking about it. Plus 2-4 15x round magazines with ease. I can throw my medicine in it and of course I always have hearing protection in it too. It's just soooo handy.