I'm not talking wallet and keys for a trip up the pub, but for long epics just short of an overnighter.
Has bikepacking taught you to be prepared and well packed, or are you a weight weenie living out of jersey pockets?
I find my long day rides similar to how I tour, minus sleeping kit. This makes it easy to just add 2 drybags to make it an overnighter.
I usually take a backpack or framebag now with:
Tubes and co2
Survival tool kit
Glucose monitor and needles
Phone + moneyclip
Pakajak waterproof
Shock pump for trails
Snacks and carbs
First aid kit
Folding cutlery
Knife
Buff and liner gloves
Light baggy shorts for modesty
It can be a fair bit but I nearly always use everything, including first aid....im always needing that..

How do yours differ? And does it change based on what you ride? I.e long road rides or fast bike park days?