Google Sheets.Access from anywhere on any device. 

Then buy a noiseaware device to enforce that

Some take commercial breaks and pitch stuff like hard money lenders, business credit, virtual assistants, landlord services, deal partnering, websites, marketing services, home security devices, etc.

Congrats on your life long success.Thanks for the kind words....Well, yes, I am glad you asked that question, in fact with the most recent development that made medical history, I am honored to say YES, I did go through, even at age 73, the not so painful process of cloning.When  I started in this business, the most exciting electronic device I purchased when they came popular is a pager, I had to use pay phones and actually mail letters, look up property owners in person at the court house, go to the copy center, and drop off film at the local photo-mat and wait a week to get my pictures.

Not to mention we can do things like sending notifications to your device to alert you of things happening at BP you might want to take notice of.Another aspect is that native apps afford us a "blank slate" in terms of design.

As far as device, use what is handy, i.e.

Hopefully you bought a property that will attract better tenant than you just got rid of I saw on line yesterday a neat device it has a strong pulsing light followed by military grade pepper spray.. and ergonomically built so joggers can hold it while they jog.

Appliances included with the RentalMonth to MonthDirect DepositLate FeesPet FeesUtilitiesAssignment and SublettingNo SmokingMaintenanceEntry By LandlordExtended Absence By TenantTermination on Sale of PremisesLease Termination Provision for Military PersonnelTenant Assumes Responsibility for MaintenanceBattery Operated Device(s)FiltersSteam Cleaning CarpetsProfessional CleaningLandscapingHOAKeys, Garages/GatesDamagesRenter’s InsuranceBreak Lease Option (Buy Out)AlterationsPest ControlHome BusinessesAttic StorageRenting Site UnseenAppliance MaintenanceFees/ViolationsDuct CleaningPlumbingChanging LocksPlay Structures, Trampoline, Pools and Other Large Outdoor EquipmentRoommateAs-Is ApplianceGood Luck you are doing great.

Never used Podio, but here are some thoughts on the other two:Evernote: Great for taking notes, and syncing amongst all devices.

It is a safety device that works independently of the regular thermostat.