Too many reminders for you to remember?

[Yongyi Xu]

Just out of curiosity, does any of our fellow landlords here in this forum have trouble keeping up with many reminders for your rental properties?

As a landlord with just one townhouse, I already have constant reminders such as monthly rent reminder (12 times a year), quarterly hoa fees (4 times a year), seasonal heat pump check up (twice a year), air filter replacement (4 times a year). 

All of these little things add up and it's becoming a serious pain in the butt. 

I am curious if there's any landlords or property managers out there sharing the same pain as me, especially those with more than 1 rental properties. 

P.S. I am thinking about writing a software to solve this problem by sending automatic reminders to myself or to my tenants via email, or text messages. Any suggestions or recommendations are welcomed :)