If this is your line of thinking, it's time to pull your head out of the sand, take a look around, and become revolutionary in a way that protects your best interest. Here's what I mean: if I had access to a beautiful beach house, and the largest freakin' collection of plastic trash EVER was floating around in the sea somewhere out beyond my porch, I'd be thinking more about how to protect something I dearly love - like the ocean and every little living thing in it - and less about the convenience of plastic bottles.
A couple of suggestions:

For more information about the dangers of BPA (and you want to know this if you have children, or if you've been chronically sick and can't figure out the cause), visit the Natural Resources Defense Council by clicking here. Type BPA in the search box, top right corner of the page.
Keep a mason jar on your work desk. I love drinking water (and wine) from glass jars. Makes me feel rugged and self-sufficient. Do it; you'll find a challenging column of numbers less daunting when you pretend to be a moonshiner figuring your books.
Those silly old plastic-makin' artificial flavor-lovin' revenuers gunning for your income will be SOL because you're drinking plain old water out of a glass jar. This crazy thought will make you smile, and the smile will activate the water, and the water will create rainbows of gratitude in your body! Now, that's convenient.