A complex and interesting novena for St Expedite, found on St Expedite.org. St Expedite's Feast day is April 19; begin the novena on either April 11th or 12th, depending on when you want to finish.
The Feast of St Gabriel the Archangel is on March 24th (last recorded date before it is moved to coincide with Michaelmas, Feast of the Archangels). There seems to be some confusion over when one starts a novena leading up to a Saint's day: do you finish your ninth day of prayers on the Saint's day or do you finish the day before? Not sure. I like the idea of finishing the day before, and leaving the actual Saint's day for simple prayers and offerings.
The traditional incense that I have seen recommended for St Expedite is a simple recipe, no doubt fashioned after the Pound Cake offering: equal parts frankincense, myrrh and sandalwood. I'm sure it does the job, but it probably smells like... well, a lot of sandalwood. Pound Cake is "a pound of everything", so going with the same logic we are using weight measurements here. So... that's a lot of sandalwood.
I wasn't going to write this. I thought about it, and scrapped it. But then into my inbox comes this article on Medium (does anyone actually subscribe? Will it be worth the $$?) about the subject and author of the first book I ever listened to: The Super Natural: Why The Unexplained is Real by Whitley Strieber and Dr Jeffrey Kripal.