what should i put in my bug-out-bag?

[Pi3]

BOB bags / Get home home bags / Quick trip bags whatever the term are something that most here have in their vehicles, and supplies vary according to geographic locale. For the part of the year that I reside in Florida, I keep a small Adidas gym bag with a two changes of clothes, toiletries, a gallon zip lock with protein bars/pedialyte powder, water purification tabs, 1 liter water bottle, a first aid kit/meds in another gallon zip loc, another zip loc with multitool, fixed blade, flashlight, spare batteries, Bic lighters, and small candles.Portable cell phone chargers(stand alone),and a paperback book(s). Cash as well, +/- 2k-3k, a Glock 19, two spare 17rd mags and one 'happy' stick. In the trunk are also two 32 pack of 16oz water bottles, in case I need to stay at hotel in between properties. Gas tank never below 3/4 full. I own two properties, one on the beach, the other inland and northwest about 50 miles apart. If I need to fly north, given severe hurricane issues, homes secured and the non-TSA approved items are left in one of them,
and my 'carry on' just goes in the overhead.

Cash: what mix of denominations? Sometimes I have trouble getting people to take a $50 for a $10 meal.