Know what you want your life to look like...it's easier to save when you paint the picture that shows you aren't sacrificing, but rather trading up for a much, much better life.
I'll give you an example. My wife and I want to be able to retire when our youngest is going into her senior year of high school and our oldest is a junior in college. We will be in our late 40's. At that time, we want to be able to travel the world for months at a time. We want to be able to pay for 50% of our two children's college tuition, have our house paid for, and own two electric vehicles that are powered by solar panels on our house. I'll likely still coach tennis, and may do work as a financial planner if that sounds like my idea of a good time. My wife has expressed that it could be fun to pursue a real estate license as a hobby, but again, only if it sounds fun, as we'll never need money again. We want to be able to spend significant time with our adult children and their families when that stage of life arrives. We will wake up when we want, sleep when we want, work out and make great food whenever we want. It'll be a life of purpose but with lots of leisure built in.
We can easily do this on two teacher salaries as long as we: live in a fancy 300k 5bed/3.5bathe house in a beautiful neighborhood, drive two 5k cars that we pay cash for, live within 3 miles of work and bike when we can, only eat out a couple times/month, buy a couple new new articles of clothing per person per year, ditch our TV in lieu of extra play time with our kids, and churn credit cards to go on multiple vacations a hear....it's a really hard life I tell ya!!!
I think it's important to frame things like this. Notice that most people say WHAT, HOW CAN YOU DITCH TV?!! But, when I jam it in there with all that awesomeness, who the f#$% cares or even wants to watch TV, there's too much fun stuff to do and plan! For us, saving 50k/year and spending 70k/year isn't a sacrifice, it's a freaking awesome trade where we give up stuff we don't really need for a lifetime of awesomeness In the meantime, we are living a very rich life.