Right downtown and just around the corner from the main market is the flower market. Both sides of the street are lined with little stands that are selling the most beautiful flowers.
Why not get a lovely foot massage at the night market. It is so cheap, we wen every evening for one.
Here You can really find cheap stuff, handicrafts, gold, clothes, fake rolex (I bought 2 - a Submarier and a GMT for 700 THB each!)