This situation has been described very well in a musical number in a stage
saw a few years ago:
On Thu, May 2, 2013 at 1:27 PM, Matt Wehland <firstname.lastname@example.org> wrote:
> I've always said that the sensors should be a little below hip level so
> you can just wave your butt at them, with the card in your wallet.
> Then you can open doors with your hands full.
> I've been in places where that works. It was nice.
> Then others that placed the sensor higher so you have to pull your wallet
> out all the time.
> The most fun I had was one time I had misplaced (left it 1000 miles away)
> a card, got a replacement then later ended up with both of them in my
> Swiping would work some times and not others, frustrated me for days until
> I went to HR to have my card checked out and found I had 2 of them in my
> wallet, one active and one not.