Does so many things, Art, my list would be:-

1) I fall down when alone, anywhere in my house, and shout "Alexa Get help". Alexa has been given several numbers and will call them in emergency.
(Tested & works)

2) Reminders - everything from cooking times to prescription taking times, to almost any other time you want to set up.

(tested & works- used every day.)

3) Answer to questions - about geography, weather, calculations, etc.

4) Plays music, various radio stations, etc.

5) Using adapters can control lights, heating, etc.

6)A recipe for dinner? yes!

7) Bus & train times.

I could go on.

Security is not an issue- except when people can hear what you are saying to Alexa. Some say that they see the light come and and that means it's listening - wrong, but it knows when you are in the room .

Very strange a while ago when Alexa reminded me I was going riding at 10am , I've never ridden a horse in my life .

Asked her to remind me of my shopping list and she told me to buy carrots bread milk and TOES

I have a huge music collection on my PC and via a thing called PLEX I can have Alexa play my music on ONE device only. It's "OK" but if anyone comes across a better solution I'm keen to know if there is one. Amazon music (free) doesn't seem to have half the music I already bought and store on my PC.

I just reminded Alexa that today is Green bin emptying day!

You would never believe it, but the device got up, off the side table, and took the bin down to the roadside!

Brilliant Device!

Thank You for all your suggestions.
I think l need to send my Alexa to Obedience Classes. She doesn’t always obey what l ask and l can feel my voice getting louder and louder as l repeat the command.
She can be so exasperating!!

If you want my suggestion Arty, you need a lump hammer and a plastic sheet.....