Due in July- do I need these things? How many?

More cloths and muslins. Ditch the powder and use cornflour. It is just to dry cracks and crevices. Shopping cart cover - just use a small blanket or quilt, much easier to wash. Maybe a baby sling, either soft or structured (like baby bjorn) You need a nappy / diaper bag to put your going out stuff in (and alcohol hand wash). A car seat, A pram (second hand is fine to begin with if washed well and dried in the sun). Some gentle baby wash, a baby bath or large basin. Yes to the fan, cuts sids risk and gives you temperature control options. Sheets. Somewhere comfortable for you to sit near the cot, And don't worry about the hats. Babies come with hats.