When I worked in a web design agency, we offered a subscription model where clients paid a yearly or monthly rate to get, say, 2-5 hours per month of minor upda

When I worked in a web design agency, we offered a subscription model where clients paid a yearly or monthly rate to get, say, 2-5 hours per month of minor updates and maintenance work. It was a nice source of recurring revenue for us, and seemed to work well for our clients too.