I didn't try them all, but the ones I tried do work.

Banana Republic Coupon Code: BRHOLIDAY (20% off from Nov 27 – Dec 24, 2007)
Bare Escentuals Coupon Code: BEFAMILY (20% off from Nov. 30 - Dec. 2, 2007)
Bath and Bodyworks Coupon Code: VELVET10 ($10 off $30 from Nov. 27 - Dec. 1, 2007)
Children's Place Coupon Code: FFTAHPVAC7 (30% off from Dec. 2 & Dec. 3, 2007)
Cloud Veil Coupon Code: 7LJ400 (45% off from ? - ? )
Designer Linens Outlet Coupon Code: FRIENDS77 (50% off from Nov 27 – Dec 3, 2007)
Golf Smith Coupon Code: FFD07 (30% off from Nov. 28 - Dec. 4, 2007)
Crazy8 Coupon Code: C8ONLINE (20% off from Nov. 29 - Dec. 2, 2007)
Illuminations Coupon Code: 999201329 (20% off from Nov. 27 - Nov. 30, 2007)
Levis Store Coupon Code: LOJVWYJ9 (20% off $75 from Nov 30 – Dec 2, 2007)
Liz Claiborne Coupon Code: FRIEND40 (40% off from Nov. 30 - Dec. 3, 2007)
Macy's Coupon Code: MACYSFRIEND of MACYSFF (20% off from Nov 28 – Dec 03, 2007)
Nike Coupon Code: 2PCTH7A (20% off $125 from Nov 27 – Dec 24, 2007)
Sports Authority Coupon Code: TSASAVE25 (25% off on 11/29 only!)
Timberland Coupon Code: 3421273 (40% off from Nov 30 – Dec 2, 2007)
Toys 'r' us Coupon Code: TRUFRIENDFAMILY (15% off $150 from Nov 27 – Dec 1, 2007)
Warner Bros Coupon Code: HGFFWB (20% off from Nov 27 – Nov 30, 2007 )