If you missed out on the free haircuts for kids through sixth grade by JCPenney, don’t worry. The CEO just sent a letter to customers (click for PDF) to offer free haircuts on Sundays permanently starting on November 4, 2012. JCPenney’s free haircuts for back-to-school was a big success, and it got lots of people into stores to at least feel the new vibe as CEO Ron Johnson transforms the business. JCPenney salons gave away around 1.6 million haircuts in August — a number “far bigger” than Johnson expected. Johnson was obviously glad with the trial results, so JCPenney is bringing the promo back permanently. Only kids K-6th are eligible, which is the same as the August promo, but there time there’s one big additional stipulation — the haircuts will only be available on Sundays.