This year I threw away the rule book and tied in the outdoor tomatoes just twice, as they were growing, watered them for a fortnight while they established and then left them to their own devices, apart from twice spraying to prevent blight. I didn't pinch them out, on the basis that it removes the leaves as well as fruit and plants need leaves! I didn't water them, even during the two months we've just had with only the occasional light shower, and I didn't feed them. The plants flopped and now form a mound about 80cm high but have produced more and better flavoured tomatoes than we've ever had before.
Didn't water the runner beans, either, based on the supposition that a plant that's slightly stressed will rush to reproduce, and our heavy clay soil was completely saturated last Winter. Again, a higher and better flavoured yeild than ever before.