I wash up to three/ four times a week and we have a very large machine!

One load my work clothes, DH 'good' clothes (if they fit in) and PJ
2nd load - DH work clothes and SOCKS (they stink!) he is a tradie!
3rd load - towels, we go through a lot!
4th load - sheets every second week, and anything white other than towels!

on a bad week i could do 5 loads!!! aaahhh once you right it down!

Then when my mum comes to stay it can be twice a day! but small loads