Get up to $200 in gifts for weekday domestic flight+hotel within next 12 weeks
I joined Upside this week and found a pretty sweet "deal." They reward flight+hotel booking with gift cards at up to $200.
If you join during Upside's beta, they're adding an additional $50 to all gift cards, making the return higher. I think you have within 3 days of creating your account to book your package.
Here are the details on booking a flight using their site during the Beta with the following conditions:
Flight has to start and end within Mon-Fri, meaning no Sat/Sun on the trip.
Flight must be accompanied by hotel booking of same time frame (it's all one booking).
Flight has to be within the next 12 weeks.
Flight has to start and end domestically.
I did a sample 3-day flight from JFK-Austin in October with a 2-star hotel pairing: Total came out to $300 but a return of $173 in gift cards (didn't say if additional beta $ was included).
The parameters are pretty tight, but if someone is going to book a business trip soon, this could help you out. I am in no way affiliated with them. I just love flight deals.