Recently Last Minute Travel ran their “World for $1” campaign which allowed people to book accommodation for only $1 a night for 15 minutes per day. The “catch” was they didn’t tell people which 15 minutes each day so people had to keep checking back and racing the clock to make their booking.

What it did create was a lot of buzz and site visitation. It might not have generated heaps of sales (rumours have it they had 955 registrations in the first 6 days) but if your aim is to get people to visit your site and start to remember it, its not a bad idea.