Most experts estimate that the effects of a default by the US government would dwarf those of the crisis of 2007-2008.
At the latest count, 22 Republican members of the House have said they would vote for a "clean bill," one which would allow the government to resume business and avoid that default. Without getting rid of or delaying the start of Obamacare. 22, or maybe 23, one Republican seems to be on the fence. Either way, the clean bill would pass with a few votes to spare if it were voted on right now. The number of Republicans in the House expressing support for a clean bill seems to just keep on rising. As does the economic chaos brought on merely by the thought of a impending US default.
A clean bill can pass just as soon as Speaker Boehner lets the House vote on it. Please contact the Speaker and ask him to allow a vote on a clean bill.
Contact information for people outside of Boehner's 8th District of Ohio: http://www.speaker.gov/Contact/
If you're in Ohio's 8th District: http://boehner.house.gov/contact/