http://www.travelzoo.com/blog/tsa-stop-taking-drivers-licenses-9-u-s-locations/There are a few states will not be allowed to fly domestically in the US using their driver's license. Double check BEFORE leaving for the airport to see if your state is on the list. If you have a passport, I would suggest bringing it as a backup.
Note - some states have been given waivers in the last few days, so the list will be changing. Again, check BEFORE leaving for the airport.
What differentiates an average host and a great host is anticipating unexpressed needs and wants of their guests. Just because the want/need is not expressed, doesn't mean it wouldn't be appreciated.