Legit ways to get PSN discount codes?

there aren't really discount codes in the coupon sense, which is why every site promising them is junk. the legit ways to pay less are the store's own sales (the big ones come round every few months), ps plus member discounts, and buying psn wallet cards from a normal retailer when they're on offer. wishlist the game and you get told when it drops. anything asking you to log in for a free code is after the account.