Elaine Viets has put most, if not all, of the books in her Dead End Job series on sale and/or free on-and-off for a while. Not so much the titles in her Josie Marcus, Mystery Shopper series. Now (February 14, 2021) here’s the fourth book in the series, Murder with All the Trimmings, free at Kindle US and UK. Freebies tend not to stay free very long, so grab it now if you want it.