I have been very lucky. Just started work for less than a month and I've got all free trip to Bangkok for 4 days. The itinerary consists of 1 day seminar and free and easy for the rest.
Day 1
Took an evening TG flight. Arrived in Swissotel Nai Lert Park hotel around midnight.
Day 2
Seminar was held at the hotel for one full day, followed by dinner. At night, we went to Suan Lum night market. Nothing much to buy actually except for all those Thai souvenirs.
Day 3
A tour to Damern Saduak floating market, followed by visiting Parthorn Chedi, the oldest temple in Thailand.
After the tour, we went to MBK followed by a 2-hour massage at Health Land Spa.
Day 4
A quick shopping trip at Central before departing to airport. Because of time constraint, I didn't get to buy anything even though I tried very hard to shop. :(
I only spent less than SGD 100 for the whole trip.