My wife and I are constantly looking for quality in our life . . . and we start with the basics:

Food
Do we eat healthy, nutritious food at a reasonable price?
Do we enjoy a variety of foods?
Do we make memorable dining experiences the kids will remember when they are older?

Clothing
Do we have clean, fresh clothes that fit properly and don't break the bank?
Are the clothes appropriate for work and play?

Shelter
Do we have a safe, warm/cool, reliable home?
Is it comfortable and nicely furnished with crossing over into excess and clutter?

Transportation
Do we have functioning, reliable vehicles that get decent mileage?
Are they appropriate to our needs (moving six people and excessive daily business travel)?

Education
Do our kids get a good education?
Do the kids learn outside of school with us?
Do we adults continue to learn and grow?

Our Relationships
With the kids?
With each other?

Frugal and simple living make it possible to answer "yes" to the all of the above.  Living with a certain quality of life isn't that complicated when you think about it . . .