Let's be honest -- during the hectic holidays, you probably skip working out. Take a new approach. Rather than wait for a large block of time to magically free up, get your fitness in five-minute spurts. We've created a range of exercises that provide a big impact in a limited amount of time. Choose one activity for each time of day, and give it your all for five minutes. By the end of the day, you'll have 30 minutes under your belt -- and be well on your way to a healthier holiday season.

Get out of bed, roll out your mat, and use this move to release accumulated back tension and work your abs. Sit with knees bent and soles of feet touching. Holding ankles, roll onto your back, then roll back up to sitting. Keep chin tucked into chest. Repeat.

Waiting for your coffee to brew? Grab some cans or light dumbbells and take a few laps around the inside of your house, doing bicep curls as you walk. You'll work several major muscle groups as you get your circulation pumping.

Before you get in the shower, work up a quick sweat by jogging in place. You'll rev your heart rate and increase circulation. A simple jog will do the trick, but to boost intensity, try bending your elbows and pumping your arms, or bring your heels to your buttocks.

You've heard this before, but now's the time to do it: Park several blocks away from where you work and speed-walk there. Or run an errand on foot. Either way, bend your elbows and swing your arms straight back and forth to boost the cardio benefits.

Tone legs and buttocks while you are on the phone. Stand with feet wide, toes turned out, hands on hips. Inhale and bend knees, lowering as far as possible; exhale and squeeze inner thighs and glutes as you come back to standing.

Get energized before a meeting with a jump-rope simulation. Stand with your weight on the balls of your feet, heels slightly lifted, knees softly bent. Take small hops, rotating your clenched hands by your hips as if jumping rope.

On your way to pick up lunch, hit the nearest staircase and climb two flights, taking the stairs two at a time to maximize the cardio workout while also building leg strength. Head back down the stairs with quick, light steps, then repeat until five minutes are up.

Boost energy while working your legs, obliques, and back with side crunches. Stand with arms straight above your head. Lift your right knee out to your right side as you bring the right elbow to meet it. Return to starting position, then repeat on the left. Keep alternating.

Focus and energize before a big meeting: Hop feet out and raise arms to shoulder height; pause. Jump feet together and lift arms above your head; pause. Hop feet out and lower arms to shoulder height; pause. Bring feet together and arms down to sides. Repeat.

When the afternoon slump hits, boost your circulation and release shoulder stress. Standing or sitting tall, extend arms out to your sides and start making large circles, working down to small circles. Reverse direction. Repeat with arms to the front and above the head.

Refresh your mind and body with a fast walk around the office, outside the building if weather permits, or up and down the hallways. Walk quickly, pump your arms, and resist the temptation to stop and chat until your five minutes are up.

Everyday activities count as exercise, too: You can burn more than 200 calories an hour -- and scratch a to-do off your list -- by vacuuming. Tackle one or two rooms, bending to pick up stray socks and moving quickly as you clean.

Turn your holiday gift buying into an exercise stint by taking a full lap around the mall before starting to shop. You will not only add another five-minute interval to your day, but also get a preview of all the stores -- so you'll know where to go and shop more efficiently.

Release tension as you bump up your heart rate by putting on a favorite five-minute song and dancing however the mood strikes. Stevie Wonder's "Boogie On Reggae Woman," Justin Timberlake's "Senorita," and Madonna's "Vogue" all fit the bill.

Sit with legs slightly bent and feet just wider than hip-width apart. Inhale, sitting tall. Exhale and draw your navel in to the spine, making a C shape with your back as you fold forward, reaching for the toes. Inhale and roll back up. Repeat.