Just turn the engine off if you know you wont be moving in the next 5 min or so (like while waiting for your better half's "be there in a minute" (which means, hintay ka mga 30 mins)...
your tranny, starter, battery won't die prematurely if you do this, unless para kang tricycle na kada andar papatay ka ng makina...
walang "counter" mga kotse telling you not to exceed "x" tries... just use common sense.