What the fuck has Obama done? More than I can remember. http://whatthefuckhasobamadonesofar.com/ has all the answers. Here are some of the things he has done.
Repealed Bush era restrictions on federal funding for embryonic stem cell research (http://www.guardian.co.uk/world/2009/mar/09/obama-administration-stem-cell-funding)Signed the Christopher and Dana Reeve Paralysis Act, the first piece of comprehensive legislation aimed at improving the lives of Americans living with paralysis (http://www.christopherreeve.org/site/c.ddJFKRNoFiG/b.4506337/apps/s/content.asp?ct=6866203)Established Credit Card Bill of Rights, preventing credit card companies from imposing arbitrary rate increases on customers (http://politifact.com/truth-o-meter/promises/promise/33/establish-a-credit-card-bill-of-rights/)
And the list goes on. This list is in memory of all those Democrats who today end their civic service. Thanks for your votes, they cost you a seat.
[edit: WhatTheFuckHasObamaDoneSoFar is a partisan website. All claims are sketchy until proven worthy.]