Today's modern world, with its plethora of countries, panoply of waterways, and constantly changing laws about what is and what isn't "mail fraud" is as confusing as it is stressful. Choose between two avenues of relaxation with today's Groupon: for $44, you get 10 fitness classes (a $140 value) or a 50-minute therapeutic massage (a $89 value) at Spiritus Yoga & Spa in Riverside. Spiritus hosts its invigorating activities and serenity-boosting sessions in a relaxing atmosphere. Health-hounds can tone traditionally with Pilates or boot camp, or choreographically melt away calories with rhythmic Zumba, burlesque, Afro-Caribbean, and belly-dancing classes. Otherwise, smooth away stress-bubbles with a 50-minute massage that untyies muscular Gordian knots and peaceably evicts deep-seated tension tenants. Childcare is available for mothers on the move with precocious progeny.