Preparing for Baby

I had my baby shower last weekend. I am 31+3. I recieved all sorts of nice goodies, like a wipe warmer and a bottle warmer. I recieved bottles and pacifiers, things like this. My question is when did you guys start sanitizing/washing clothes/sheets etc? When did you put everything together? Should I go ahead and do all of this now? I'm planning on breast feeding, but you know things happen and don't always go as you plan it. So should I sanitize the bottles now? I'm a ftm and just have no idea what I'm doing. Haha.