socks

How can I make Lizzie understand that if she wears all her favorite panties and favorite socks on the day after I do laundry she will not have any favorite ones until I do laundry again??? Any suggestions??? I have even resorted to removing all socks, except the dreaded white ones, from her drawer.
I will thank God again that He has clearly given us plenty of things to focus on with Lizzie as she gets older. Advanced warnings always help. I am sure we will see this played out with money when she has some!