What are the regular tasks you do on your boat?

[bloodypirate]

I've been working on an app to keep me organized and make it easy to do the periodic things you have to do to take care of things around the house. Add salt to the softener every month, replace the air filters, check the septic every two months, replace the fire alarm batteries every year.

I'm looking for examples of the same sort of things on a boat. Check the bilges every other day, wipe down the ceilings every 5 days, replace the water filter every month, etc.

What is your list? What are the things you are checking periodically? Ideally if it's useful I'll throw the app out there, right now I just built it for myself. I'm sure there are apps out there that can do something like this, I'm building this just for fun.