I just machine wash once a week. (Using kodomo’s newborn detergent & softener)
For clothings that didn’t make it in time for laundry I will just handwash and hang.
Used to hang inside the house with a rack for 2 days. Now I shifted to my own place so I use dryer. However I still recommend hang drying, the heat from the dryer tends to stiffen the clothings a little.