Recently I came across a very interesting article on claims drafting on Patently-O. The article titled "Ron Slusky: Five Prescriptions for Effective Analyzing an Invention and then Claiming It" gives great tips....

There are various strategies of disclosing an invention. It is, understood, here that the invention is disclosed to a reliable patent attorney or patent agent. According to a first strategy the patent attorney gives a disclosure template form to the inventor and asks the inventor to disclose the invention by filling the fields in the template.