Off the top of my head:
-- Conrad BKK - the 1B Exec Deluxe Suite for 1/35 of the nightly rate. THB$635 instead of US$635. My first and only trip to Thailand.
-- LCA in AZ/CY J/C, 2 x $43++. Never considered going to Cyprus, let alone twice in two weeks!
-- CNZ to CHC for the Nov '07 ZQN DO $1700. UG'd with a gifted SWU + 30k. First time south of the equator.
-- UA ATL-HNL $132 combined with NW HNL-YOW CAD$188 and 5k to MKK. First time faced with Canadian Customs & Immigration.
-- DL SEA-SYR B fares 4 x $130. Flew the last two Memorial Day weekend '07, VDB'd twice in ATL for $800.
-- Missed the NAN fare. It was posted during my first FT day and I didn't have the wherewithal to get myself booked.
-- VJ's MR seminars (DCA, PHX and SFO) that taught me to maximize and not to be afraid of public transportation and sleeping in airports.
-- the several dozens of friends I've made.