It's really easy to neglect a web site after it's up and running. I've been as guilty as anyone. I hope to change that.
I hate paying bills and doing accounting chores. Many years ago I decided that I'd set aside a certain amount of time on a certain day of the week (every Monday morning) to just sit down and do that stuff whether I want to or not. The system has worked like a champ. I'm going to try it with my web site (maybe an hour every Tuesday morning).
Right now I'm doing a complete revision. It's not ready to publish yet, but should be by next week. Stay tuned!