Center Storage

Okay I need some help from all of you wonderful teachers out there! How do you store centers AFTER or BEFORE you use them??? I like my storage system while the centers are in rotation but then when it's time to put them away at the end of the week I was always scrambling for a place for them to go! I've tried binders with each month labeled but the cards and pieces to the centers became bulky and too heavy for the binder to hold. So then they just became piled in the closet...which made me go bonkers every time I saw them in their ziplock baggies piling up in a stack. So how do you store your centers?? Files? Plastic Bins? Thanks for you help!! :)