Sale of the Week #2 Teaser

A teaser for next week’s Sale of the Week, in kinda-lame-limerick form:

There once was a knitter, Louisa
Who gave us ideas that pleased-us
Her summertime knits
Were a huge hit
And now you can share in the making.

(for 25% off)

What do you think is the next Sale of the Week, people? Who is this Louisa person? What in the heck are we talking about?