I'm not based in CLT anymore so I don't have the phone numbers but there are several cheap hotels around the CLT airport.
The Morgan, is the nicest one. $45/nt incl tax and they have free breakfast. It is also close to stuff like KFC/walgreens etc if you want to get out of the hotel. There is also a great pub nearby to eat/drink at.
The Amerisuites at the Coliseum is really nice. One restaurant across the road. $50/nt.
Ramada Woodlawn. Cheaper (i think $40 incl tax). They have a good bar and restaurant in the hotel.
The Fairfield ($35 incl tax. Totally cheap. Free breakfast. ********************ty hotel, but cheap. Some of the rooms have outside doors (like a motel) and so you can end up right by the highway where it's loud. Once I had a room there where the door was bent where it had been jimmied open with a crow bar. But if you ask for an inside room they are nice enough. Nothing to eat within walking distance of this place though.