When you're done using a lipo for the day and a couple hours later it's still the same size, shape and hasn't let the magic smoke out, guess what you've got a 99.9999999% chance that it's not going to while it's just sitting there. At the end of a race day my lipos are at 7.6v which is a fine storage voltage. They sit on my bench with all my other gear stored in a cool dry place out of the sun..I sleep pretty well at night. If doing all this stuff makes you and your family feel better/safer then by all means go for it, I just don't feel that it's necessary.