You’re just treating yourself (and maybe the Leaf).Set the charging slider to 60% SOC and plug in every night. Then, when you need to go on a longer trip, set the slider to 90% the night before you leave. That way your battery will stay closer to 50% SOC all the time and "might" last longer (at least that's what some of the experts seem to think). Anyway, that's what I do with both the 70D and 2011 Leaf. I keep them both around 50% SOC, then charge only when I need to drive longer distances (my commute is 8 mi RT).
Probably, but I don’t drive the 70D in town, so it mostly sits plugged into 120V, waiting for my next trip. Will it even make a 5% difference in range in 10 years? I don’t know, but it doesn’t affect my use or usability. I have SCs at 10, 70, 90, 100, and 120 miles in all travel directions.You’re just treating yourself (and maybe the Leaf).
I only plug my model S in once or twice a week. There's nothing magic that happens when it's plugged in and not charging. The only reason Tesla recommends leaving it plugged in all the time is to prevent people from allowing the charge to drop too low. it's like the advice to fill your ICE car up when the tank is half empty, its directed at people who don't have the wherewithal to keep track of their fuel level so they don't run out.