Washing fruits and vegetables. Seriously, what's the point?
Vinegar does not clean off pesticide residue from food. A surfactant is required to break the surface tension of non-polar compounds by a polar solution. oil and water don't mix. Vinegar just changes the pH but it's still a polar solution. That's why it kills pathogens.
To remove the pesticide warm/hot water with some sort of mild detergent and rinse well. This works for skinned fruits/veg. But lousy for leafy things. Those I choose to soak in salted cold water. Really all you can do anything for fresh herbs is rinse them.
I always salad spin my fruit/veg after they get washed. I do not use a vinegar solution to clean my foods. I do wash my chicken and all meat for that matter. My logic is in trying to reduce the bio load on the food rather than sanitize it by washing.