Blight....blah!

It appears we have blight on our tomatoes!  Not the ones I grew from seed but ones that someone gave us.  That figures.  The rest of the tomatoes seem to be healthy except that they don't have much in the way of fruit.  What they do have is very small and green.  Ahhhh!  I don't know if it's worth putting some sort of row cover over them or not.   I guess it might be but I hate the thoughts of it.  I think I need a high tunnel for next year.
Maybe I can find plans to build one inexpensively.  Maybe I"ll design my own.  Or maybe I should just get an earlier start on my garden next year.
Oh, well.  Lots of lovely squash of all kinds.