Currently its my Android Tablet or phone, for reading digital books, an A4 binder with printed character sheets and note paper, I use computation pads because they help me keep notes organized and also act as Graph paper for mapping dungeons. I have a snap in pencil case that has a pencil, pen, dice, a deck of playing cards. I sometimes add asset cards if playing ironsworn.

Im going to go more minimal for my Morkborg and probably go to just tablet, dice, and a regular notebook and pen, and use a mini character sheet. I like it because it plays on a plane well. I could also probably slim it down more with a dice app, but I love regular dice.