I have yet to get screen protectors, but not for lack of trying.  I did pick up the shield at TJMaxx that a previous poster mentioned, but then I mangled it because my Xacto knife wasn't as sharp as I thought it was. Thankfully I only threw away $5 on that attempt.  
 
I did happen to see these WriteRight universal screen protectors at (EVIL)Walmart.  I thought I'd check here to see if anyone has any experience with this brand?  
http://mobile.walmart.com/ip/WriteRi...s-2pk/17163628