Some comments on water. Store what you can and have the bath tub bladder to fill if you have time. Have 2 ways, other than boiling to purify water. Filter, chemical. Boiling works, but is time consuming and requires some type of fuel. Silcock keys will get you access to water in and outside of buildings. A super syphon would be nice for transferring water
Solar or hand crank battery chargers. AM/FM/SW/ Weather radio . Scanner is handy to get real time information. Most of all a well thought out plan divided up into key areas. Food, water, heat/light/power, commo, security, cooking/sanitation, medical, noise & light discipline, bug out plan. Dividing things up makes it more manageable. How and when to retrieve supplies from other locations? Develop a "mutual aid" network and plan. Share skills, supplies, key items, labor.
Cash, no large bills. $20s and LOTS of $1s and $5s. If you have a camping or backpacking stove, extra fuel. Never allow car gas tank below half. If you can keep a bag in the car that gives you another layer of preps and additional supplies. Don't forget OPSEC & PERSEC, your neighbors don't need to see or know.