There are advantages to a weak dollar that we shouldn't forget:
1. U.S. goods cost less, so our exports rise - just look at beef and agriculture right now.
2. Associated with # 1 above, we can only hope that it means we will keep more jobs or grow more jobs (see 3 below)
3. Lots of jobs that went to Canada are now returning to the U.S. because it is now cheaper. (I read an interesting article lately that stated that a high loony is not particularly good for Canadians because of the increased labor costs and the movement of jobs). The company I work for in particular, a small international company, was hiring lots of people in Ottawa but is now back to hiring in the U.S. because it is cheaper.
4. If you own stocks in big U.S. companies like Proctor and Gamble, Coca Cola, McDonalds, etc. where 50% or more of their sales come from overseas, you're somewhat isolated from the dollar decrease, because these companies sales are in the foreign currency and when brought back to the U.S. they take advantage of the exchange rate.
I hate to say it but a weak dollar may be a Godsend, because it may help with employment which is probably the biggest factor affecting the real estate 'crisis' and consumer spending habits.