Jess,
If you stand in front of the temple's main entrance (back facing the temple), you'll see a building with lots of shops selling dry goods/ chinese medicine on the ground floor.
The shop is the left-most corner unit on the ground floor.
I buy clothes for home wear (eg. plain coloured pants, mesh-fabric singlets) and towels (eg. face towels, hankies, bath towels).
I don't want to get your hopes up too high as variety is limited and more towards the basic range. But I like them as they are cheap and comfy cotton material suitable for our warm climate.