LogFAQs > #930021544

on top of some money (in small bills) id make sure you have a usb (or two) copy of any important documents that might get lost or stolen. also keep a portable battery for charging your phone or anything else. when it comes to batteries id also personally store them in sets of two separated. dont just throw them in a bag. iv done that and if one explodes for what ever reason its probably gonna take others with it.

as far as general stuff youd need in most situations--
knife with a sharpener (can also double for protection if a gun is out of the question)
depending on where you live id also have some type of firearm. a .22 is ideal and you can pack a ton of ammo in a small space.
head light
toilet paper/wet wipes
small first aid kit (id also keep pain killers of some kind, antiseptic and penicillin [look up fish antibiotics, but only use as a last resort])
multitool
a QUALITY pair of shoes or boots (i can not stress this enough, dont cheap out and keep them tied to your pack)
saw/hatchet
water filtration (sawyer mini filter)
water
if you wear glasses or contacts, get a second pair and store them with everything. also keep extras of prescriptions if you need them.
atleast 50 feet of paracord
fire starting kit(matches, lighter, magnesium rod all preferably stored in a water proof container)
some type of cook set and means to wash them (scrubber, little bottle of dish soap)
optionally some spices to go with what ever you might make.
extra pair of underwear and socks
small sewing kit
small fishing kit
contractor garbage bags (tons of uses)
also condoms as mentioned do have a ton of uses and take up hardly no space.
sleeping bag (and make sure its rated for your weather)
BUG SPRAY and/or sun screen depending on where you are.
tent
tarp and/or poncho
some type of blow up cushion to lay on
shemagh (tons of uses)
work gloves
duct tape
90-100% wool blanket
gps/signal mirror/whistle
small tooth brush and tooth paste
compass and maps of areas (and learn how to use them. dont 100% rely on the gps)
and maybe a little survival book to help you out and give you ideas.

this all assumes you are also going to be bugging out with a pack if you need to. if you want to sit tight then on top of all this start hording food, water, toilet paper, paper towels and general hygiene supplys (and store the paper stuff high up and protected incase of flooding if you have to worry about that). if money isnt a huge issue and you dont feel like having to rotate out anything then buy up some mountain house meals (and dont forget the water). they last 12-30+ years. if water is an issue then horde MRE's instead (note their 4-10 year usual shelf life though). if youre a cheap ass then buy as much beans, rice, suger, coffee and pasta as you can and store them in 5 gallon food grade buckets in mylar bags with oxygen absorbents. and dont forget the spices.

theres a lot of other stuff you can do, but id consider those the more notable things.