For the past couple years, I've taught mostly all juniors. (I've had around 120 juniors per year.) Last year I found myself writing 40-50 college rec letters. I actually somewhat enjoy writing the rec letters, but completing 40-50 of them (and doing a good/thorough job on them!) took a signficiant amount of time. Some teachers in my school cap the number of letters they write. (One teacher I know caps it as low as 10.) There's a small part of me that wants to limit it this year to around 20 or so. My one issue is I have a hard time saying no to a well-deserving student (I had no issues telling 2 kids last year who asked "no" because they didn't take my class very seriously), and my other issue would be how to cap it (First come, first serve? Any exceptions for exceptional students who ask once the cap is reached?) In actuality, I will probably just write for any well deserving student who asks, but I am curious what you do? I also like to try to make each letter unique, though there are small parts of it that I may copy and paste from letter to letter.