If you Google the words "simplify life" your search will result in over 44 million hits. Although I didn't read them all, the general theme is to stop doing things that you don't want to do in order to leave time for the things you really enjoy.
The notion itself can provoke anxiety - how do you go about eliminating chaos, clutter and activities you'd rather not do? The answer is different for everyone, and there is no shortage of resources to begin the process. You could get inspired by reading Thoreau's Walden, learn how to take the drudgery out of housework (see video below) or see how one woman simplified her life by going "no poo."
What to do with all that free time? We could read more books - including ones on learning yoga, meditation, and just about any hobby or activity you can imagine. We could go for walks, learn to play the ukulele, or do nothing at all.
Speed Cleaning by Jeff Campbell (2010)
Small is Beautiful: Economics as if People Mattered by E.F. Schumacher (1973)
100 Ways to Simplify Your Life by Elaine St. James (2001)
Luxurious Minimalism: Elegant Interiors by Fritz Von der Schulenburg (2013)
The Art of Doing Nothing: Simple Ways to Make Time for Yourself by Véronique Vienne (1998)
Simplicity Parenting: Using the Extraordinary Power of Less to Raise Calmer, Happier, and More Secure Kids by Kim John Payne, Lisa M. Ross (Sound recording, 2011)
Everything Must Go with Will Ferrell (DVD, 2011)