I'm only a user, i would like to post an idea.
It's possible to develop, in future a skill or features for avoid Alexa, to close session after one command?
I don't speak about Routines, but just wake word and close word, and between you can send all message.
Now is very annoying open one session for each command, will be perfect a solution like this:
Echo: Hi, how can help you? (or just the light as now)
Me: bedroom turn on light
Echo : Done, may help you more?
Me: bedroom dim 50%
Echo: Done, may help you more?
Me: play relax music
Echo: Done, bla bla bla, may help you?
Me: No, thank you
Echo: Ok bye
Will be more smarter, and more like a conversation, then just send a command