What supplies do I need ahead of time?

Baby is coming in 6.5 weeks. I called my insurance company and got the scoop on a breast pump (medela pump in style).

I bought bottles but don't know what storage kit to buy? Our bottles are playtex drop ins.

What other supplies will I need? This is new territory to me. I had an unsuccessful BF relationship with Chloe and am hoping to have success this time!