I finished the Blue Herron Shawl and love it, I just need to bind it off again, as the first time was too tight and therefore the width was less on the bind-off side than that on the cast-on side.
I will try this method:
2. Slip the 2 sts from the right hand needle to the left hand needle.
3. K these 2 sts tog. K1. (or k2togTBL. K1 )
4. Repeat steps 2 and 3 until all sts have been bound off.
found on Weebleknits.
Of course there were other links with same or similar suggestions, this was the first that I clicked on and I will try it.