Thinking of Valentine’s dinner at Chez Expensif, a box of vitamin-infused chocolates and a Tiffany mood ring for your sweetheart, heartthrob or secret-crush-you’re-working-up-the-courage-to-ask? Or maybe fancying up some Trader Joe’s fare for a “home-cooked” meal by candlelight, while you don a lacy red negligee or leather undies underneath a slinky…