It seems that Alan Archuleta, author of The Gospel of Hemp, is giving the gift of knowledge this year. His book is available in a digital edition for free at this link. I do not know how long this will last, so go ahead and get it downloaded so you can spend some time reading once the sun goes down (at 4:30 PM...).
If you're still looking for things to do during the long nights, check out the video below, made in 1942. This video does a great job explaining how hemp can be used to make a large variety of important materials. It focuses on military applications, such as rope for naval vessels and canvas for parachutes. The video even mentions that the word "canvas" is, in fact, derived from the word "cannabis", from which the material was originally made. Given the Allied victor over the Axis, it would seem that the Hemp for Victory campaign was a success.
Enjoy the season and any Holidays you celebrate!