I suppose my basic ready, grab, bug-out bag is the Maxpud Jumbo Versipack. Some crazy overstock on Amazon a few years ago and the orange versions were priced at a bargain £35 if memory serves. I bought two, and His and Hers patches to embarrass Madam
. Lots of us jumped on the heads up on BB and got one, it’s been brilliant as airline carry-on and small essentials. It lives part loaded all the time, always has a couple of packs of tissues, small first aid kit, some meds, Swiss Army knife (dunno model, small with scissors, toothpick, tweezers on board). Enough room and organised spaces for iPad, Kindle, USB cable, 12v lighter adaptor, battery pack, torch, spare pants, socks, t-shirt, water bottle.
But a bigger BOB has been prepared and put in the car after the winter we had in 2010 (I think ?). The winter was cold and unpredictable, so I bought a 5.11 X-Ray Duffel and put a couple of blankets, down bag, folding shovel, gas can, stove, pan, 2lts water, tins of M&S curry etc. It felt good to know I had some kit with me.
Course, we haven’t had a winter like it since, but I can definitely see the BOB as positive thing.