I had a very long day in town today, 7 hours and much of it in 100 degree heat, starting with 2 hrs sitting on an uncomfortable chair in my writing group, then 15 (count 'em!) different stops to make. A day like this would have had me in tears 6 months ago, before my hip replacement...all that in/outing from the car, trekking across parking lots, endless walking thru vast DIY stores.    I'm knackered tonight...but not in pain. Makes all the difference...a real blessing.