After trying both, here is my opinion...a)  heel straps work good if you use
them
and if you use them on both feet.  People put one leg up while working a lot
and 
then your not grounded.  They are cheap, wear out a lot and people forget to
use
them or not put them on proplerly.
                           
                                                       b)  foot wear, shoes
or boots are expensive,
a pain to set up for people to get the right size, etc. especially if you
have a shoe
truck come in.  But, you realy should not wear the same shoes every day, and
the
most important fact, the shoes get the foot hot and sweaty (that's the way
they
work) and people don't like them for that reason.  If they take the shoes
home
and don't wear them the next day, then you need straps, there are other
negatives.
But, they work good.

Therefore, as straps work good, and if you police the practice, that's the 
better way in my opinion.  

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