I went without a bra for almost nine years after a shoulder injury and continued pain when wearing shoulder straps.
I then decided it was time to stop the pull of gravity on my neck...
Last March, I went to the only local department store, had the fitting person in the lingerie department fit me. She did not have my size, and said that is what I should get, so I bought two from amazon.com. Amazon.com has my size, even today, yeah!

This bra is so comfortable I wear it all day and never think about it. I have always worn underwire bras, and this bra is the best.

I cannot find this in my size in any local stores. The department store where I was fitted is having a big sale next week and this bra line, Invisible Bliss, is shown in the sale ad. I will go to the store to see if they have my size for the advertised $15.30. Likely not, and the amazon.com price is less than the $30 the department store charges regularly.
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Update November 1, 2010: I ordered two more of these bras, one black and one light bodytone. They seems smaller than the bras I ordered a year and half ago, but perhaps the older bras have stretched from wear and washing. Still the only bra I will buy as it has no plastic strap adjuster; they cut into my skin and I am glad they still are not on theses bras.