I had 14 terries, 6 prefolds, 10 muslins & 6 wraps with DS. We did a load every day I think and had a tumble dryer so had a fairly quick turn around for them. The prefolds got very quickly put to one side, never to be used again and we stuck with the muslins mainly in the early weeks moving to the terries when DS started weeing more.
This time around we have no tumble dryer so I'm thinking I will need a few more in case of long drying times. I still have all the terries and wraps but only 6 muslins as some got chewed up
so will be buying a new pack as well a adding to my wrap stash, introducing some woolies and maybe a few fitted nappies.