What's the significance of her crocheting?

A few topics down from this one (re: Full Moon), a post by Linda-Hardwick offers a great explanation.

***Spoiler****

"Regarding the crocheting, my theory is that it symoblizes the web of lies she has been weaving (or crocheting) over time. At the beginning of the film the piece of lace, which would have been from the time before the murder, is rather small. By the time she gets out of prison, and after her amazing depiction of her attempted rape, the lies about the letter, and the attempt to buy it with her husbands life savings, the piece of lace has become enormous...at the end we see her leave the party and go in to the bedroom, where she attempts to crochet -- something she has been doing as long as we've known her. However, this time she realizes that she can't do it (anymore?), and she throws the lace down. A moment later, she attempts to lie to her husband, telling him she loves him...I think the throwing down of the lace is a metaphor for her throwing down her life of deceit."

The lace is symbolic of the web of lies she weaves throughout the movie. As you may remember, in one of the last scenes of the film, during the party to celebrate her acquittal, she retreats into a bedroom to do more crocheting. However, her emotions well up and she casts the lace aside, never to be picked up again. To me this is a foreshadowing of the next scene, when her husband asks if she loves him. She tries to lie, but finally confesses that, "with all my heart, I still love the man I killed!" She can't crochet anymore, and she can't lie anymore, either.

It alwo becomes her death shroud.

Swing away, Merrill....Merrill, swing away...

My wife says whatever she was doing, it wasn't crocheting.

E pluribus unum