Today my Dad and I did more steps than we have ever done.  We went up and down seven and a half times for a total of 7500 steps.  It was easier than we thought it would be.  Strange that the first couple of times up seem to be the hardest.  Then, we get into a groove and it goes easier.  The bottom third of each time up is pretty easy because we've had a break coming down.  We were planning on doing 7000 steps today, but we thought if we did 250 more (up and down), then we would have done three quarters of the ten thousand steps we hope to do next Saturday.  The whole thing took us about 2 hours.  Faster than we thought it would.  I guess it will take us about 3 hours to do all 10 000!