I run my own business. Every extra hour I devote to that is an hour I make a hell of a lot more than $35. But I could be a construction worker or a factory employee who could volunteer for overtime, same difference. And yes, I absolutely pay someone else to clean my house, I take my car through the car wash, pay someone else to risk their neck on my gutters, pay Jiffy Lube to change my oil.... Basically everything else that I could and at one point in my life did do when my time was worth less than $35/hour, but it is now horribly inefficient and in fact moronic to do myself when others can do it for significantly less than my opportunity cost and since they have all the right equipment, training, and experience can actually do it faster and better than you or I. And I buy most of my stuff on Amazon unless I actually enjoy shopping for it, why waste time going to a drug store to buy Q-tips? And this is a guy who has rebuilt carburetors and changed head gaskets and the like, I'm mechanically inclined and not afraid to get dirty, that's not the point. Now I only do that if I will enjoy doing it (and still sometimes do, I did some work on the car last weekend with my teenage son and we talked about this very thing), not because of a false sense of economy.
Not only is this not a wicked lifestyle, the fact is that I can do this precisely because I look at the world this way. It requires a conscious change in the way you think about your time, but being deliberate about your time and it's value truly is life changing. I can't recommend it enough.