Daily screen usage
I would like to quickly see my daily screen usage (phone or desktop) from the day before. I get weekly alerts on my phone showing my weekly screen time, but I think seeing it easily, constantly, and with a quick turnaround (daily instead of weekly) would motivate me to cut down my screen time. This could be taken a step further to show how evening screen time affects sleep quality, which I saw was also an app suggestion that I would use.