In S1E17, Lorelai and Max start making out after Lorelai shows up unexpectedly at Max’s apartment. Max breaks away and yells, “This is crazy!” Lorelai says, “No, it is. It’s nuts. It’s nuts.” Max begins, “I mean, I don’t see you for months and then all of a sudden…” Lorelai finishes, “Ding-dong, Avon lady.”
Avon is a cosmetics company that was founded in 1886 as the “California Perfume Company,” but changed its name to Avon in 1932. Avon uses door-to-door saleswomen (commonly called “Avon ladies” and catalogs to sell their products.