How to Decide the 'Best' Way to Use Your Stimulus Check by Julia Glum Do you remember that children’s book "If You Give a Mouse a Cookie?" The gist is that there’s a boy who — as you might guess from the title — gives a mouse a cookie. It sets off a whole chain of events. The mouse eats the cookie, which makes him want a glass of milk, which makes him want a straw, which makes him want a mirror to check his milk mustache, and so on.