Tennis stuff in general doesn’t go on sale much, especially not for a great string brand like Luxilon. Buy 3 or more Luxilon string sets (can mix and match), get 50% off. Note that 3 sets will take you over $20 which automatically gives you free shipping.
Luxilon Big Banger Original 16 – $7.47
Luxilon Big Banger ALU Power 16L – $8.97
Luxilon ALU Power Feel 120 – $8.97
Luxilon Natural Gut Tennis String – $22.47
Note: site has issues with paypal…