I found terry toweling the best for spew rags as they seemed more absorbant and washed better (eg kept shape etc) I also put one under DS head in bassinet and cot as he was a chucker and it saved me changing the sheet.

Swing/rocker or both are heaven sent!!!!!
wondersuits
bonds all in one singlet suits as they dont ride up and get lumpy.
I love the swaddle me wraps rather than blankets.
if you plan on BF buy lansinoh

As long as you have clothes and nappies you can get things as you need them