I got an email from Musician's Friend today, saying that :
We're giving our best customers another shot at this great offer!
As a special holiday thank you to our best customers, you are invited to take advantage of this exclusive offer! Save 15% off any single item when you place your order by telephone. Call 800-391-8762 between 12:01am PST December 8 and 11:59pm PST December 9 to pocket 15% savings.
Just call us and say “Save 15” to receive your discount. 
Click Here for details.
I'm sure we can all find something we can't live without....