My mother taught me this song, which she may have learned in her childhood as a child of the Great Depression. Her verse pattern was:

Today is Monday. Today is Monday.
Monday wash day, Is everybody happy? Well I should say!

And each verse repeated the things from the previous days as in other entries in the thread. Her verses, I believe, were:
    Monday wash day,
    Tuesday ironing,
    Wednesday soup, (or perhaps "shopping" [grocery])
    Thursday roast beef,
    Friday fish,
    Saturday pay day, and
    Sunday church.