Wireless Ethernet hookup

Hello,
I have been on the road lately and put up in hotels that have very limited wireless access. Twice in the last month, have had ethernet connectivity in the rooms but wireless was down most of the time.
Unfortunately, my laptop only has wireless connectivity... Is there a USB connection to hook from my wirelss card to the ethernet port in room?

Appreciate any help with this, as it wireless can't prove troublesome on the road.