I need to remember to use them more often -
there's so many to choose from and some might be expired - but you keep trying the codes until one works.

a listing promo codes sites -
http://www.google.com/#q=promo+codes...fp=OlAWEoQSgPM

some you can copy/paste, and some will be clickable -and take you to the website?? { some sites/coupons will work better if using IE instead of Firefox,
I just found that out the other day.}