Disabling all notifications where possible. Turning my phone off when I'm not expecting important calls. Books. Walks in nature. Cycling. Allowing for a small window of time at night for social media, then I move the phone into another room so I'm not tempted to refresh my feeds.
I ride my bicycle or motorcycle. You can't be online when your hands are busy.<p>I'll usually bring a book or a notebook, linger in cafés and parks, and browse random shops.