Coming on the heels of the newly released PS4 3.5 firmware, the PlayStation Store will be offering a 10% off discount starting now, and lasting till the afternoon on Sunday in the US, Canada, and Latin America. The discount can be applied to one transaction made on the PlayStation Store on PS3, PS4 or via the online store between March 26, 2015 and March 30, 2015 at 12:00 noon PDT. There is a list of things that the discount can not be used for, including game pre-orders, PS Plus memberships and any video rentals.
Strangely enough, the discount does not apply to transactions on the PS Vita or the PlayStation TV. If you aren't see the image or if it is no longer available, use "LQ8ERDQH3A" in the available promo code area. Check out the official PS Blog post for further details and restrictions.