My version of that MasterCard commercial...
-Instant coffee to survive next day 7:30 class... 75fen ($0.10CDN)
-Bus ride to Heda... 1kuai ($0.15)
-Taxi ride back after missing the last bus by over an hour... 10kuai ($1.50)
-Rooftop/outdoor Chinese dinner with way too much food, split 20 ways... 20kuai ($3.00, my share)
-Meeting almost every Westerner in Baoding (20 or so), having good, natural conversation in English and French, getting tips on China... Priceless