Regarding shoes.......my wife suggested I get some Skechers Shape ups to assist my back while exercising. When I first tried then on last summer, I though I was going to lose my balance and fall, as well as not liking the awkward looking soles. However, I eventually got a pair a month later due to her frequent comments about how great hers were. I'm on another pair now and can't believe the improvements it has made! I'm not tired after being on my feet, and they are invigorating. Going back to other shoes seems a real "let-down" for all the support they give.  Wife seems right on this advice...