You are starting at what we call a UDC. UDC stands for Upstream Distribution Center. The UDC captures and hold product that is hard to predict demand for. Basically yes, clothing, baby products, and some weather related items like snow shovels.
As a whole your job is to receive these products, store them in the WH, sort various products into special green repacks, and then ship these to the RDCs, Regional Distribution Centers, which then load them into trailers meant for specific stores.
I couldn't tell you exactly what your individual starting role will be. I know we had one guy who said he worked at a UDC pop up awhile back. Maybe if he is still here he can help.
Based on what you described I would guess you are in the equivalent of what we call Packing. You are given full boxes and then open them and sort individual pieces into the repacks which are then sent and loaded into trailers destined for RDCs.
If that is the case, in general it is considered a pretty easy job.