Putting together a detailed proposal takes real time and thought, so it stings when you later find out a client used everything you laid out to go and hire someone else at a lower price. It happens more often than most people talk about, and it raises a real question about how much detail is too much to share before any agreement is in place. Some freelancers have started keeping their proposals more general until a contract is signed, which seems like a reasonable response. Have you ever had a proposal used this way, and has it changed how much detail you now include upfront?