The Best Things in Life Are Free!

It's true: love, laughter . . . samples at Whole Foods, the best things in life are indeed free, which is a good thing since most of us are feeling a little financial pinch these days.  Come shake off some stress without shaking out one cent from your piggy bank with a complimentary yoga class taught by yours truly, at Lululemon tonight (6:30 p.m., Prudential Center, Boston).