On Tuesday, I ran my OD&D game at my house. For that game, I made two rule changes. Since I recently found and downloaded a .pdf of Supplement I (Greyhawk), I converted the thieves to those rules. I had been using Jimm Johnson's house rules for the thief class from his Planet Eris. Of course, we've only had thieves for a few sessions, since it took most players far longer than I expected to level up from zero! The other change I made was to do away with the OD&D experience awards in favor of trying out Alexis Smolensk's experience system from his "The Tao of D&D." I liked it a lot, and several players commented in favor of it as well. You can read about it in Alexis' own words here, but the short take is that you get 10 xp for every point of damage you cause, and 20 xp for every point of damage you take; and the party as a whole gets an equal share of another 20 xp per for all the damage the party suffered as a whole. I'll use this system for a few more games and see how it goes, but at first blush I think it'll be a keeper for my OD&D campaign.
On Wednesday, we went to S's house (she normally Skypes in from college but she, too, is home for the summer), and my son ran his 2nd edition AD&D game. M's game is the only one I play in, and I'm having lots of fun playing my rogue, Corrin Aledrinker. We had no luck getting S's Dad to play (he's also right around my age), even though he played years ago... but we'll keep trying!
All-in-all, lots of fun last week!