Medela accessories

Breastfeeding mamas:
So I ordered my pump.  It obviously came with the pump, the tubes, "breast suckers" as Ill call them haha, and two bottles.  Anyone with experience able to tell me what I need on top of that please??  I wanna make sure I'm not sending my SO to the store in a pinch because I just don't think he'd be able to figure this one out!😂
Thanks ladies!!