Where do I drop off a big bag of nice women's clothing? Do I actually come into the store of some other door?

You can drop it off through the door marked Nu2U between 10 and 4 on weekdays and between 10and 3 on Saturdays.

West side of the building but announce yourself at reception

Go to the back of the building and ring the Nu 2 U doorbell. They will take your donations and give you a receipt.

You can bring it in the front door. Otherwise they take it in the back of the building.