You know you're old when....

I'm going to make my list of "You know you're old when..." today, so that those of you who are "young" will have something to be grateful for.  My mother has been telling me for the past gazillion years, "just wait until you're old, then you'll know what it feels like to..."
You Know You're Old When...
1. You spend more for skin moisturizer that food
2. Your students (if you're a teacher) like artists whose names are more like a mixed-up alphabet, than a name.
3. When you go to "Children's Place" or other kids clothing stores, the clerks refer to the items you're purchasing as items for your grandchildren.
4. Your age is dangerously close to the decade you once thought of as ancient.
5. It gets harder and harder to make 5 miles on the tredmill.
6. You keep getting AARP stuff and information on burial plots.
7. Your doctor runs more and more tests (why?)
8. You hate to write your age (or year you were born) on any forms.
9. You really don't mind paying from the senior menu.
10. Your knees really do hurt, and not from playing an active game of tennis.
That's all I can think of right now, but believe me, there are so many more ways that tell you you're getting old.  I remember a long time ago, when my mother kept telling us about this restaurant she loved to go to called the "Night Hawk."  Everytime we tried to decide where to get a good burger (in my mother's neighborhood in Portland), she would bring up the "Night Hawk" as if it were the very first time she had suggested it.  I made a pact, sort of, with my kids, that I never wanted to get to that stage when I would repeat myself, as if no one ever heard it before.  I told them that they would need to stop me before I said anything more, and all they would have to say would be "night hawk" and I would know what they were talking about.  So there, you know what to say to me if I begin repeating myself.  To me it's a sign of growing old, maybe not, but do whatever you think necessary so I don't drive you crazy (like I don't right now!)