If it is short, don't stress. Here are some ideas from past furloughs.
Do something around the house that you wold otherwise have to pay someone to do.
Use that timeshare week now in a "last minute" booking that will give you more for less.
If you do not already have a money making hobby, this is a good time to focus on that second income stream. Put something on Ebay or Craig's list that you no longer need.
Declutter -- take a load or two to the Salvation Army or Goodwill.
Do taxes and get all of your deductions this year.
Honor your parents. Join your children in school -- read to the class -- help the teacher -- go on a field trip.
Take your children out of school for a week for educational travel or to honor your parents.
Finish that project that never gets done and continues to weigh on you -- a painting, a quilt, carpentry (molding).
Other people will address the less temporary measures --but yes dust off your credentials and remember that down-sizing government also means more temporary positions will become available and it might be time to become more of a gypsy, ride the tide to more opportunities. If you are near retirement, maybe it is a good time to take on some risks/challenges before you leave government.