A few posts ago we discussed building your own I2C display to reduce the pin count from 6 to two. We have also added 5 inputs to this project, a video of the commercial version, and posted the instructable that you can vote on at http://www.instructables.com/id/DIY-I2C-LCD-Display-With-Inputs/
I’ll be posting more projects using this 16 port I/O chip in the near future, like a I2C relay board, and multiple I2C LCD displays.
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For more projects that use this chip and additional code, see:
http://arduinotronics.blogspot.com/2015/11/wifi-rechargeable-internet-clock.html
http://arduinotronics.blogspot.com/2015/10/add-up-to-128-inputsoutputs-or-mix-to.html