I work on my feet in a hospital for 10 hours a day.  I put all my weight (I'm not overweight) on the ball of my foot, and by the end of the day, they really hurt.  I bought the Skecher's Shape Ups a year ago, and my feet stopped hurting!  They make you put the weight on the middle or arch of your foot, and they are so soft and springy.  I love them.  It is time for a new pair, but even after wearing them for a year, they are not worn out.  The only downside is that you cannot run in them.  But it has never been a problem for me.