With Nintendo's Deluxe Digital Promotion now expired, padding your eShop account with a little extra cheddar isn't quite as effortless as it used to be. It might take some bargain hunting to scrape up a few extra bucks, but Best Buy's occasional eShop card sales are a reliable place to start.
The cards are Best Buy's Deal of the Day, with a number of different denominations all at 10% off. That means two $10 Yoshi cards will net you the same overall discount as one $20 card with the bros, but the Yoshis are much easier to split with a friend. Just sayin'.
Best be quick if you want to take advantage of the day's deal, as it's set to end at midnight EST.