Just back from Dongguan yesterday. Dongguan is quite a lot of clothes (both adult and bb) and a lot of things to buy...the clothes are quite good & quite fashionable...similar to Fa Yuen St....Quite a lot of foreigners to buy (of course for trading), it's a place of retail business.
I brought 3 T shirt for Tung Tung - each $10.00. 3 little girl "under" with pig & tail style (saw in HK before) - $10.00 totally.
One casual trousers for $35.00, 3 T-shirt for $105.00.
There is a "時裝Shing" with 3-4 floors near the Dongguan Ferry Pier...quite a good place to shopping and better than Lo Wu.