Keep some serious cash on hand. The FDIC has a 100 Billion credit line it can draw from the Treasury but that will add to the immense debt offerings they are already selling. The fact of the matter is that the FDIC is going to take an insane amount of losses by not closing banks down when they should and eventually there may be no real insurance to cover deposits.
It’s a stretch expecting that the gov’t will not have the means to bail out the FDIC but it is possible.