I've been livid since Sigg announced they were switching to Bisphenol A-free liners on their reusable water bottles.

Me livid at BPA-free bottles? What gives? You know BPA is my evil foe. It's a plastic additive that is thought to be harmful, possibly even causing cancer. And it's in tons of stuff you use every day, including the lining in some canned foods you buy.

I love Sigg. I hate BPA. But I'm ticked because I thought the linings already were BPA free. See, Sigg touted the fact that their bottles were good for the environment and you. One of the claims: Your liquids wouldn't be tainted with BPA, thanks to the safe liner.

Turns out that this meant that their studies showed the BPA wasn't leaching not that it was BPA-free. Pot-ay-to, Pah-tah-to? Not to me.

The finally developed a BPA-free liner. I could get one of the new bottles by thwacking down another $20. Oh, heck no. I was so mad. I didn't want to use the bad bottle, but I paid $20 for it, thinking I could use it for years. And I use it daily.

I angrily kept using it. Don't ask. I even brought it into Whole Foods with me last week while shopping so I could sip tea while strolling through.

At the checkout, the bagger asked me, "Did you get your new Sigg yet?" This is why I love Whole Foods. She knew what it was and didn't even have to explain why I would want a new one.

I explained that I wouldn't give the company another $20. She smiled and filled me in. Turns out Sigg is doing a free exchange. If you have a BPA-lined bottle, you can bring the clean one to Whole Foods and pick up a new BPA-free one to replace it.

This is exactly what I hoped the company would do. That's a stand-up thing to do. And god bless Whole Foods for hanging on to the old bottles to ship back to Sigg.

If you have a Sigg bottle, check the liner. If it's clear, it's got BPA. If it's peachy looking, it's BPA-free. Head to the nearest Whole Foods, likely the one on 75th Street, near Route 59, in Naperville.