Yesterday I had some concerns as well.  I usually have lunch at my desk
and then walk for 20 minutes.  Yesterday, I had a lunch meeting so I
knew no walking would be going on.  I parked in a distant area and
walked in an extra five blocks or so.  I had to get the car for the
lunch meeting so back five blocks.  Then I parked there after the lunch
meeting, etc.  Then, when I was driving home, we had a very heavy late
afternoon thunderstorm (I was thankful that I was not on my bike!) so no
walking after work either...  Anyway, I made it to 10k but just
*barely.*  The challenge definitely got me a few extra thousand steps
yesterday.

P.S.  I'm thinking of doing this challenge again the beginning of September.

My Goal is also 10K, and yesterday I happened to glance at it at 8 pm
and the reading was just under 3K.  Holy mackeral, I continue to be
shocked by how little I move.  I had a bill to deliver downtown so I got
my husband to go with me and the dog on a walk downtown to deliver it
and brought my total up to 3900 steps for the day.  (It was a
particularly busy day at work where I worked into the evening.)

I think wearing a pedometer gives me an awareness, sort of a biofeedback
device, that reminds me to park farther and take more unnecessary steps.
 I've struggled with this for a long time - I have a fat lady's
efficiency of movement - and even put it into my New Year's Resolutions
to move more, including always using the bathroom that is farthest away,
etc.  Wearing the pedometer really reenforces that.

Dally