Playfish Cash Cards are now available at Walgreens in the United States. The next time you pick up your meds, shampoo or toothpaste, you can treat yourself to either a $10 or $25 card, good for buying virtual currency within Playfish's games, including Pet Society, the company's biggest cash cow.

This entry into retail stores is a huge step for Playfish and the social games industry overall, and signals the mainstreaming of virtual goods. Spending real money on an imaginary jacuzzi or a Halloween "mummy fish" will no longer be thought of as weird or fringe behavior. Clearly, you’ve arrived in middle America when your product is displayed next to Hershey bars and cards for Target and McDonald’s.

Initial reactions by fans are positive. Despite grumblings by a few who've nicknamed the company "Payfish," many gamers are rushing out to their neighborhood Walgreens, spurred by the cuteness factor of the pink and blue plastic. The cards also come just in time for the holidays—stocking stuffers, anyone?