Like its literary homonym, the human colon can cause awkward pauses when used incorrectly. Maintain a freer flow with today's Groupon: for $55, you get a colon-hydrotherapy session at Houston Colon Care Center (a $110 value).

Houston Colon Care Center cleanses patients' inner workings using a holistic and gentle approach. A consultation prefaces the appointment before a certified hydrotherapist uses a LIBBE device to gently flush digestive thoroughfares with a mix of temperature-controlled water. A miniscule, single-use nozzle ferries away impacted bodily toxins during the 55-minute treatment, and calming breathing techniques help patients relax as they undergo their gastrointestinal revamp. Guests can let their eyes wander about the tranquil spa environment, or focus their gaze on available observation equipment. Ten minutes of postprocedure rest lets bowels readjust, before newly invigorated bodies skip, hop, or walk slightly faster than usual to the parking lot.