After winter break, I tell my students that I came down with a virus during vacation and can't remember how to tie shoes. I write down the names of the children who can tie on a 'Shoe Buddy' list. When someone needs a shoe tied, they look on the list to see whom they can go to for help. It frees me up and gives the ones who can tie a boost of self-esteem not to mention more practice. The shoe buddy system also helps the ones who can't tie learn quickly because they get tired of asking someone else for help all the time.