preplaced both belts on wife Sentra, changes oil, filters & wipers now that we are actually getting some winter weather up here.
also, garage doors have shatty base seals. So bought new tracks, rubber seals and decided to try adding foam inside rubber "fold".
figured foam would add some rigidity to rubber to ensure it seals to floor, and around and sticks/stones/etc.
so far noticed much tighter seal and very happy with result.
next is to replace seals around outside of doors. again, shatty nailed up type. will get better ones, as I'm not big on the breeze I can feel when working out there with the heat on.
pic of tonights experiment
round "filler foam" inside rubber seal