Brain Food (Writing Prompts)

This prompt is based on a very interesting dream I had a while ago. Gravity no longer exists. Stores and houses are on clouds. Sea animals fly down from the sky like birds. Humans fly. Cars fly as well but are slightly unbalanced much like a cart on a amusement park ride. Explain the difficulties of this lifestyle and what happens when someone flies down below the clouds. Or go ahead and comment a better idea down below if you'd like. Just have fun with the concept. GO CRAZY!