My birds are not clipped anymore ... they were once a year for the first 2 years that we had them.
Both Lucy and Jessie depend on me for transport - that's just the way it has turned out. They get lots of time out of their cages - either on top, on the couch with me, on their playstand, etc. My step-son is afraid of the birds, so I don't want them getting into the habit of flying all the time - I have to consider my family as well.
Lucy is a curious flyer and will sometimes take flight just because she wants to. If no one is around, I let her get it out of her system. She is a good flyer and I'm not too worried about her hurting herself. No one is home today, so they'll get lots of time out of their cages and I'm sure at some point today Lucy will take flight.
Jessie on the other hand only flies when he gets spooked ... so as you can imagine it's more like frantic flying and he usually flies into a window or a wall or hanging off blinds. He's hurt himself a few times ... fortunately not seriously. I don't think Jessie knows what he is missing to be honest. He is such a happy care free bird and makes fun no matter where he is hanging out. I think he is quite happy to come and see me whenever I take him somewhere else in the house.