Mine always go missing, and it's cos mum's grabbed a load and taken it home with her to wash - can't really complain about that can I?? On the floor in the laundry? Behind the bathroom door? (sometimes a wet nappy gets lost behind there when Riv's in a hurry to jump in the shower) Clean one in a washing pile? In a washing basket somewhere? Blown over a neighbour's fence? Packed into a different bag, like if you stayed somewhere overnight? In with bub's clothes?