Sorry, I misread the original posting. Frankly I can't see the US greenback (or the US itself for that matter) being down too long. It is too large a market industrial powerhouse to be on the ropes for long.
I don't know how much US you have on hand, but I was taught to "buy low, sell high". If the greenback is low now, I'd hang on to it unless of course you think it is going to go any lower but I don't think the powers that be would let that happen. I don't all the ins and outs that they can do, but I don't think they ones making the decisions would let it slide too far before stepping in. But that's just me and my paranoid delusions about the powerful people in the world lol.