Yep, this was definitely one of those... "I know better, but didn't remember to do it for... let's just say <a while>..." However, I did remember to change the anode rods in my hot water tank not too long ago, so maybe that makes up for it...?Hm but I do need to remember now to get my furnace serviced too. Can't remember the last time I've had that done. Dang it, the list is going to get long again if I don't distract myself with something... I did just change the battery in my Suburban about 20 mins ago - wanted to get that done before it got cold and snowy again. I don't know what Chevy was thinking putting it where they did, I had to watch a youtube video to figure out how to get the darn thing out of there without taking out the whole reservoir and everything. There's a perfect place and plenty of room on the other side, but whatever... let's wedge it in super tight in the upper corner. LOL, at least it's done now.