Thanks everyone!
CinnamonFern, I think we have a few "Breton top twins" here.
Beth Ann, that's a great idea about a watch/bracelet. I used to always wear a simple utilitarian watch but once I started taking pictures of outfits, I realized that it is nice to have a more decorative watch for tops with 3/4 length sleeves. DH gave me a watch with a two-color silver/goldtone bracelet for my birthday last year, and I usually wear that watch with the 3/4 sleeved jacket.
Sarah, thanks for giving me the inspiration for searching out that dress! I tried belting it but I am a little worried about the length of the dress - when belted, it looks slightly above the knee, and I am not sure how long (or short) it is going to be once I wash it. So I might wear it unbelted for teaching and belted for other occasions.
GGB, LLBean always runs big for me so I never buy anything above a small, even though I may be a medium or 6/8 in other brands. This is a small, and I am size 8 in AnnTaylor tops, if that helps. I just washed and dried it so I'll need to try it again to make sure it did not shrink. The knit is very substantial so I think this is going to be a nice transitional top for colder spring days.