Sports Basement BasementeerBecome Basementeers! Sports Basement, is spinning the traditional “loyalty” program into a win-win for their loyal customers and our community. Basementeers receive 10% and give 10%: 10% off every item every day 10% of profits back to schools and charities including Steindorf STEAM School There is no fee for school families or customers with previous acceptable partner discounts as long as they mention the school or partner at the register. After December 31, 2016 a one-time $25 fee may be charged for membership. On your next visit to Sports Basement, register for Basementeers and select Steindorf STEAM School as your beneficiary!