As more and more people are taking delivery of their Model S, I was wondering what is the best way to preserve battery life. If you have a daily commute of, say, 2 x 30 miles you could drive to work for 4 or 5 days before you need to recharge. Is that the best choice? Or is it better to topp off the battery: short charges every time you get to work and again every time you get home? I've read in the past that a battery can handle only a certain amount of charges and discharges (no idea if this applies to the Model S battery). I wonder if a small charge/discharge has the same effect on battery life as one full charge/discharge?