I don't usually do that. I don't sell many flowers except for during the summer when I make wildflower bouquets. Is it true that once you force a bulb that it won't bloom again? If that's the case it wouldn't be worth it to me.
Yeah, lots of pros say they won't bloom again, but that wasn't my experience. It might take a year of rest before they're super showy again though. I guess bulbs are my favorite to force, especially tulips.