Last night we had our dinner at Toa Payoh Hub. We were glad to bump into another Valu$ shop. It is situated at the basement,opposite FairPrice and next to Toa Payoh MRT station entrance.
The things are incredibly cheap e.g. a box of Lipton tea bags (20) is going for $1 (at FairPrice $5.30). The After Eight mint is $2.95 (selling about $8 elsewhere), the chocolates are going for $1 each. There are hundred of items and one shouldn't miss this place.
At the basement of Toa Payoh Hub opposite the bus interchange is where you will find the famous Soon Heng rojak stall. The queue was as long as ever even at 9 pm when we were there. The 15 minutes wait was worth it as the rojak is one of the best in Singapore.