Today only, OldNavy.com takes 25% off sitewide with the code BDAYGIFT. Check out the girl's Tiered Graphic Tee dress, which drops from $16.94 to $14.00 on sale, then $10.50 with code. Or take a look at the women's Ruffled Polo, which drops from $22.94 to $7 on sale, then to $5.25 with code and the men's Active Performance Tee, marked down from $12.94 to $9, then $6.75 with code. Shipping is $7 or free over $50. Sales tax is charged in most states.