I have 2.
1 ordinary sized rucksack where I keep things we use regularly: important documents (passports, medical, house, birth certs, external hard drive with all photos etc backed up etc), first aid kit, spare cash, map of the city, windup torch + survival blankets/rain ponchos/life straw
It's very accessible.
1 camping rucksack with a lot of my general prepping stuff:
1 set of spare clothes, toiletries, nappies, baby wipes
Windup radio, torch and lantern
Swiss Army knife, work gloves
Disposable gloves
Life straw/biscuits/water bottle
Vitamins/painkillers
Playing cards, sewing kit
Groundsheet
Sporks
This one is in my wardrobe with my coats and my hiking shoes that have clean socks in them.
My bug out bags aren't great but the basics are there - in case of evacuation for fire I would grab them and go (and use money to buy us more clothes etc) In case of SHTF I'm assuming I'd have a 10 minute warning and would grab more clothes plus outdoor gear for DCs plus food.