Miss Julia Delivers the Goods is the tenth in the Miss Julia series by Ann B. Ross. It has dropped to $1.99 at Kindle and Kobo US. Titles in this series don't go on sale very often...
Kindle US:
https://www.amazon.com/dp/B001V6P188
Kindle US/Smile:
https://smile.amazon.com/dp/B001V6P188
Kobo US:
https://www.kobo.com/us/en/ebook/mis...vers-the-goods