I love reading NSVs; they are so motivating!
So I'll start; here's mine.
Last week I was buying a big jug of kitty litter. In the past, it's been really heavy for me, and I put it in the "baby seat" in the front of the cart so it's not so hard to lift it out at the cash register again.
Well, this lats time I bought it, it actually felt light! I looked at the weight -- it's 14 pounds. I do a lot of free weight exercises using 15 pound weights; I guess it paid off!