I've never seen so many on tomato plants. My bad with the lettuce.
It's funny, they actually recommend tomato leaves as a spray to kill aphids!
Anyway I caught up on my pruning - took out lower foliage on everything even the determinates, and thinned the upper leaves too. They were worst on the low. And some soap in places. I was glad of the cold day, as I found several winged ones (again!) and I know that's bad news.