the reps are there to make money..."you need separate chargers for everything..."
Incorrect.
You can use any charger that came with an iPhone, iPod touch, iPod nano, iPod Classic, or iPad to charge any iOS device.
For those whose iPad's say "not charging", it actually is very slowly. That will be the case for those using less powerful, non 2.1 amp car chargers, wall adapters, or USB ports.
apple.com/batteries/ipad said:The quickest way to charge your iPad is with the included 10W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter.
When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge, but only when it's in sleep mode.
Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple - Batteries - iPad