Makes cigarettes and cigars into usable chems that you can see on the player model while the chem effect lasts. Also triggers an autosave in Survival mode.
I was not a fan of the Arvak model (it looks so uncomfortable). Having destroyed the Dark Brotherhood Sanctuary led by Astrid, I found in my character a significant lack of Shadowmere. Ipso, facto, meeny moe magico! Arvak with the Shadowmere model!