Jockstrap Central ran this combination promo and sweepstakes a while ago and it was so successful they're doing it again.
Like you ever need a reason to shop but in case you do, here's two: Not only can you get 10% off your order but you could also win a $50, $75, $100 or $150 gift certificate for use at Jockstrap Central.
For the 10% discount, simply place any item into your shopping cart at their website then enter discount code SAVEWIN into the discount code box and click the Add Coupon button to register the code. Anything in your cart and anything you add to it afterward will be discounted by 10%. The discount code is valid until Wednesday, June 10th.
As for the contest, just place an order at Jockstrap Central between now and Wednesday, June 10th (don't forget to use that 10% discount code!) and you'll be automatically entered. Alternatively, check out their sweepstakes rules for a link to enter without a purchase.
On June 11th they'll be randomly selecting four customers to win either a $100, $75, $50 or $25 gift certificate for use at Jockstrap Central on a future order.