Pretty a lot of people is surprised that there is no component in HA that allows user friendly setup of actions to be executed per week day. Basically some good looking and user friendly scheduler e.g. for thermostat control or other actions.
Someone proposed to use netatmo scheduler as an example: https://my.netatmo.com/app/energy?demomode=true
And I really like this design. I hope that one day we’ll get a new entity type in HA that will be represented with a GUI similar to the one above.
I’d really like to be able to turn on a heater (on/off) using such schedule, but I can imagine there are lots of people, who would need to control temperature using such a scheduler (I mean not only on/off. but also set a given expected temperature).
Some do this with a Google Calendar and I also did it like this as it seems the best choice (simple GUI), but I am of an opinion that HA is meant to integrate all the different things together and give control over them from one place - Lovelalce UI. Having a built-in scheduler in Lovelace would be a really great and powerful feature.
Hope this idea will be seen by the HA devs as one of the key things in the next major HA releases.