I think the "fiscal cliff" itself is a good thing, and I don't want Congress to make a deal before or after. The US needs both the spending cuts and the tax increases, and the more the better.
Of course, I'm both young and in "pay off debt" (rather than "invest") mode, so my perspective may be different than the majority. My main concern is whether there's going to be high inflation, in which case I want to re-leverage while money is cheap (albeit at lower interest rates than I'm paying now).
I am so glad someone else said this (though we may be in the same age bracket so we're not as "fearful") because I feel pretty much the same way. I do not think the 'fiscal cliff' is going to cause the kind of mass market pandemonium being touted in the WSJ (thank the gods for the FT or I'd go nuts with all of the fear mongering). If anything, it's something our country desperately needs and it saddens me that both prime candidates are dead set on doing something to stop the bitter pill we have to swallow. I'd vote for whoever is actually willing to cut the ridiculously bloated defense budget, but considering that's the only way this country seems to support anything involving science I remain, emotionally, on the fence.
Then again, I don't take tax deductions of any type (while paying on income) and consider paying taxes my duty as a civilian citizen so maybe I'm not so attached to paying as little as possible for the privilege of living in a first world country with all of the amenities said good fortune encompasses. Oh no, I'm not bitter about the "other" kind of atttitude at all. LOL!
That said, since we don't really have much a precendent though we can always look to Greece to see what happens when you have a citizenry dead set on not paying taxes while the government implements austerity. As far as how my investment vehicles will change, I don't know yet. I'll probably contact Fidelity to find out how, if at all, my 401k will change and since I go long and buy low for value, if stock prices fall I'll probably go shopping.
I remember something one of my least favorite Econ profs said; 95% of the market is self-fulfilled prophecy.
And Americans LOVE talking ourselves into a good apocalypse. Must be all that pent up puritanism. Ha!