If you go to her website, choose "calendar" then scroll down to workshops and classes.
http://quiltville.com/calendar.shtml
Of course, the usual sewing items (many helpful hints already posted above). If you've any scraps/strips you want to share or trade, there's often a table where folks pile their extras and help themselves from.
And if you've done any of her quilts - whether it's still a flimsy or a completed quilt - and would like to take it, she does a "show and tell" right after lunch. It's great fun to stand up with her and your quilt - be sure to take a camera and have somebody snap a picture.