When you give clients a rate (like 2000 a month, 6 months), do you give them the option of backing out at any time? or do you lock them in for 6 months? obviously it's better to lock them in so they dont waste your time for a month and then leave. but do people actually sign such contracts? how do you get people to make a commitment of 6 month or longer so at least you have a constant flow of income coming in?