essentials/ good things to have for weed "on the go"?

i love to smoke and im just learning how to roll good so that means i always gotta keep some papers nearby. with that said, what are some things that u recommmend I get? so far im going to get a mini crossbody bag so i can keep all my stuff close w/o having everything jammed in my pockets, as well as a joint holder / container, and a poke tool. and ofc the essentials like a lighter filter tips and a tray. what else should i get?

i basically want my bag to have all the essentials plus anything that might make the smoking process easier.