I wouldn't say I'm super great at living the Simple Life myself, but I do try. To me it means opting out of the hype cycles and rat races that the media pushes, appreciating and trying to get better at simpler things. Enjoying what I can do at home instead of seeking outside stimulation and entertainment.
The other day I took a bath because I had been gardening and gotten completely muddy. I pulled the plug after and realized I still enjoyed watching the water swirl around the drain the way I used to when I was a child. It's a small thing, but I try to stop and breathe whenever I remember. Just doing nothing for small periods at a time helps center myself and remind me of what's important.