Staking, in general.
I searched the forum, and found only a few cites, so I'm asking.
Since a lot of you are growing long-stemmed flowers, you must have some innovative and commercially oriented methods of supporting those stems.
I had 1.5" of rain in a couple of hours, overnight, and went out to survey the damage. Anything over 3' and with open blooms, tried to flop. R.hirta 'Burpeei' and Shasta 'Alaska' definately suffered. Shasta 'Crazy Daisy' at ~3' just needed to have the moisture shaken off, and stood back up. The Rudes and Alaska's were mostly supported by light-weight bamboo grids. Some of the grids were in place early, and the plants grew up through them. Others were added after growth had happened, more time-consuming, but equally effective.
I tie off seed heads on grasses, for seed collection, with a simple loop of waxed twine gathering them in a clump atop the plant. Sunflowers have heavier bamboo grid-frames, anchored on rebar stakes.
What are your plant support techniques?