Someone on another forum gave some good advice:
If one is so concerned about TSHTF, then why aren't they learning a new trade that will be required under that scenario? That way they are in demand and have a renewable resource by which to survive.
Obviously believers of this scenario don't think that it will last long, probably view it with shades of grey and sepia in their minds eye, like a long, snowy winter, and expect to come out to "spring" after a few months.
If you think TSHTF will happen, stop waiting and learn a trade. Insurance actuaries and waitresses may be in low demand. Machinists that do not need a CNC, mechanics, weavers, farmers, lumber, building skills, generator/soalr panel/wind mill maintenance knowledge, food preservation/canning knowledge, candle making, etc...
Everything that you have will need to be maintained by you. Do you have a home shop outfitted to work "off the grid" Do you have hand tools (hoe, rake, hammers, nails, pop rivets, sheet metal, whet stones, axes, hand saws, extra handles, squares, levels, crow bar, pulleys, etc...)? Do you have supplies (oils, buttons, rope, chains, harnessing, glass jars/canning supplies, fabric, thread, needles, salt, ...)? Do you have non-electronic reference materials (ie books, repair manuals)? Do you have local friends (church, other)? Do you have entertainment (books, musical instruments, ...)
Do you own a bicycle? Do you know how to fix it if you get a flat tire? Do you have a bicycle pump? Do you know how to fix it if the piston seal goes bad?
Do you have an off-grid, potable water source?
Do you have a wood-burning stove, properly installed, in your home to provide heat, not just ambiance?
Can you darn? Can you cobble?
If you think that TSHTF will come to fruition, have you thought through what will truly happen the day after?
Personally, I read Rev. 18 and think that the US will go out with a bang rather than a whimper.