They showed up with that fancy foot mobile, the woolly mammoth vacuum cleaner and that woodpecker record player.

I can edit tasks, appointments and reoccurring events/routines on my computer, which syncs with my Android cell phone.

I'm too lazy to do anything more fancy.

This might be a regional thing, or as Bryan Hancock suggested, could vary from city to city.If I did the "Yes Ma'am" routine at the local bars in Newport Beach, I'd definitely get some strange looks.

All the data bases I routinely use have the information, both legal description and address.

Doing it this way has literally eliminated a week (in most cases) from our critical-path routine...

. -- You'll keep back maybe 5% of all rents for routine maintenance and another 5% for capX (big expenses like roof or furnace replacement).  

If you're going the umbrella insurance route, make sure it will cover you for several things including just the routine slip and fall (like mold or earthquake).

I guess if I were staying in a top dollar place, I would expect more fanciness, but I don't stay in those places.

There are some very complex, fancy spreadsheets available for less than $10 that let you manage up to ten units.