I wrapped Riley (born late May) in thin flannelette blankets instead of muslin as I thought he'd be too cold but thats just personal preference.
I found that I didn't need the baby bath as it took ages to fill and nearly broke my back emptying it. I put him in the normal bath with this bath thing like a ramp with terry towelling on it for the baby to lie on (I'm sure that makes no sense I'm not good at explaining it!) I found the baby bjorn fantastic.