PayPal offers a free$10 iTunes code when you spend $50 or more in-store at Home Depot via PayPal. (You must add the offer to your PayPal account via the above link.) That's the first such offer we've seen from PayPal. (We saw $5 off Home Depot purchases of $50 or more, with a $5 donation to charity, six days ago.) You can pay via PayPal in retail stores using either a cell phone number and PIN that you set up after adding the coupon to your account at the link above or a PayPal payment card that can be mailed to you at your address. Deal ends April 24.