The future. That's what I'm starting to think about having looked at my plants today. They're loaded with fruit and covered with blight. So sad.
Next year to help keep them disease-free I'll scatter tomato plants instead of planting them together in one bed. Maybe that'll help a bit altho' because we're dealing w/ an airborne fungus I don't expect that to be a guarantee.
I wonder if we'll have a better time if next summer is a dry one. If the fungus is in the environment any watering could still cause a spread.
Sounds dicey no matter what.

Tomato blights, early and late, are caused by funguses. The fungus will over winter in garden debris and the soil. Remove ALL garden debris from infected plants and destroy or dispose of in the garbage. Next year, water the plants at ground level, allow the soil surface to dry and at the first sign of the blight: remove the infected leaves and spray the plant with a fungicide containing a copper compound. Other solution for prevention/control are: plant tomatoes in an other area of the garden or plant blight resistant varieties, if you can find them.

Couple of other things to do might be;
sterilize the soil with a spray of fungicide.
bleach the tomato baskets/stakes/tools
spray fungicide as a preventative next year