Once again, thank you to all for the insights and advice!! Very much appreciated. I think I’m going to just let D19 skip the ACT and relax about it. Poor pup still has FINALS to contend with in addition to everything else as we slog our way to June 14. Choir performances this week are going well and tonight is the finale – I’m excited to see the real deal and not just the rehearsals version. And then she’s been asked to be a junior attendant at graduation, which is a cool honor but then that’s more rehearsals to attend. I swear I’m not complaining… 
@eandesmom Thanks for the resumes expertise! I’d been following a sample from a college consultant; hence the inclusion of AP scores and more info beyond two pages. Perhaps I misunderstood the purpose/intent of that sample resume, because what you’re saying about brevity absolutely makes sense. Sounds like there’s not really a need for this mammoth document and it won’t get read anyway. I am doing a major revamping of what we have.
@homerdog I’m jealous of your year being over and the good grades in and done. D19’s math grade juuuuust slipped to a B+, just in time to have nothing left to recover it other than the final, so that ramps up the pressure. The exact same thing happened to her last trimester, which is frustrating. All her other grades this trimester have been super solid and she absolutely nailed her major project for APUSH, so this kind of stuff is just a bummer. Oh well. Keeping it in perspective…sort of. 
@ninakatarina Your son is polite, which is why he ended up with no food. That’s happened to my D more than once before, with pizza. Kids going in for seconds and thirds and then there’s not enough. Be glad your son is a gentleman.
My kiddo’s favorite teacher invited her to lunch, which is awesome and I said obviously she should take the opportunity then to ask her to write a letter. Her response was that “then she will think I’m going to lunch just to ask her that.” My kid and her principles!! Sigh. Since this teacher is early-career and is already at a different high school than D’s, I’m a touch worried about tracking her down if we wait until the summer is over and I want this letter commitment in the bank. I’m going to have to restrain myself to let her handle this process in the way she sees fit. But I was pleased she got the invite and I’m grateful she developed this rapport with this teacher last year.
Do y’all think a supplemental letter of rec from a relative by marriage is a no-no? My sister-in-law is a professor at a LAC (not one D is applying to) and has offered to write a supplemental (i.e., the third letter, when two are requested) letter for D19. It’s true that she and D19 get along very well, that she “gets” D19 when not everyone on the street necessarily does, that she can speak to her fitness for top LAC-level coursework, and that the two have relatively intellectual, thoughtful discussions that I would otherwise be eager for an AO to know about. But…she’s her aunt by marriage so I’m wondering if this would somehow turn into a negative because it would look cheesy. No one would suggest that a parent or grandparent should submit a letter, but a woman who married her uncle when D19 was turning age 4?
My “baby” D25 had a fitness awards ceremony at her school this morning and the reality that we’re just about done with elementary school as a family started to hit my heart as I stood there. Having this third child has been a fun way to cling to all the baby things as my other two age relentlessly, and now even she is heading off to middle school. Gah. I’m glad that at least her ending elementary isn’t happening the same year as D19’s ending high school. I might explode if so…