Forum Moderators: LifeinAsia
e.g. if you would normally charge $50/hr, then plan to do 12 hours work/month on this contract.
Whatever you do, you almost have to bring it back to the amount of TIME you are spending on the job. When I worked with a hosting company, one service we offered was a contract to do x hours/month of maintenance. The customer would email or call as the month progressed. Usually they would want more done than they were actually paying for, and we'd tell them when the time was used up. Then they could either pay for more work or let it slide until the next month. Worked pretty well with some clients.
Look forward to seeing the other responses you get on this one.
<added>Looks like Dwilson posted similar advice at the same time - he makes a good point about giving the client flexibility to postpone some changes to save money.</added>