Muscle-making, like cooking, sometimes requires formal instruction to prevent harsh burning sensations. Feel the right kind of burn with today's Groupon: for $75, you can attend a four-week on-ramp program at CrossFit Clackamas (a $150 value).

CrossFit Clackamas hosts challenging functional movement programs for muscle mavens at all fitness levels, from sports stars to sofa spuds. The four-week 14-session course meets in the morning and evening during the week, leaving time for strict work schedules and hectic hustling or bustling. Each program begins with a mandatory fitness assessment and also includes nutritional support and a complimentary brochure about the dietary wonders of olives.

The on-ramp class introduces fitness fanatics to the same style of functional movement used in more rigorous CrossFit classes, and workouts change each time, staving off boredom and keeping fitness fans engaged. Only highly trained coaches teach, and each class focuses on a new movement, such as high-resistance envelope opening, applicable to everyday life.