who said anything about selling anything? If the collapse is worldwide, about the only thing of value will be food, .22lr guns and ammo, silencers for same, and medicines, mostly antibiotics, but painkillers, sedatives, speed, and wound-treatment stuff will be sought by some. If it's just the collapse of one nation, yeah, gold coins will probably get you to someplace that's not nearly as bad off.
for now, build all the credit card debt that you can, and rent an apt. If you see serious signs of shtf, use the cards to buy all the gold coins, powdered veterinary meds and .22 ammo that you can. Dont HAVE a home that anyone can come foreclose upon, increase the taxes on, or that has any sentimental value to you, cause you can easily have to abandon it.
NUTs