We use Alexa for all sorts of things, the most useful task she does for me is add things to my shopping list. If I'm in the kitchen, it's far simpler to ask Alexa to add pearl barley, stock cubes, etc to my shopping list than to stop what I'm doing, find my paper list and a pen and write it myself!
We have three Alexas now, an Echo in the living room and Dots in the master bedroom and kitchen, so we're pretty well sorted.
We've finally finished replacing all our light bulbs with Philips Hue bulbs (all colour ambiance) so have great fun making the lights 'dance' and change colour according to the music Alexa is playing at the time! It's also very useful being able to ask Alexa to turn the lights on and off, as quite a lot of our lights are on corner tables etc, semi hidden by other furniture and a bit difficult to physically operate.
Our twenty three month old DGS has great fun with her too, playing 'Animal Sounds', he tells her what animal he'd like to hear, and she plays the sound that animal makes. It's helping his speech wonderfully as he has to speak clearly to get her to 'play'!
DGS has hay fever, so we bought a Dyson Pure Hot + Cool Link purifier. It's a really powerful fan, a great space heater for winter and removes 99.95% of allergens and pollutants from the air, and is controllable via Alexa! It's been so good for him that we bought one for DS and DDiL too, so DS sets it before he leaves work, and by the time he collects DGS and gets home, their living room air has been purified to take DGS into. It's so effective that they've just ordered themselves another Dyson to go in DGS's bedroom too!
We also get her to put lights on and off if we're away from home overnight to make it less obvious that the house is empty.
All in all, I think Alexa's brilliant, and shall be surreptitiously getting her to play 'The Washing up Song' when DH is standing at the kitchen sink this evening! Thanks phoenix!