December can be a stressful time of the year, so we’ve saved our most relaxing, grounded, honour-yourself challenge for last.

Two years ago, at an all-staff meeting, I announced that we would be introducing unlimited annual leave. To be clear, I wasn’t talking about unlimited unpaid leave. Rather, staff would now be able to take as much leave as their hearts desired and every single day of it would be paid.

Well, folks, we've come to the final day of the March flexibility challenge. How did it go?

A month is a short time. Even by the end of our flexibility challenge, you may not find that you've made a ton of progress. But every little bit helps, and it's inspiring to see the progress of people who have been working on their stretching for years.

Holding a stretch for 30 seconds isn't the only way to improve your flexibility - it's just the way a lot of us are used to. Dynamic stretching is another approach, combining gentle stretches with movements that often challenge your balance or strength as well.

Our past two challenges were all about getting stronger, but this month we're going to do something a little different. We're getting stretchy.

You don't have to be flexible to do yoga, although it certainly helps for some poses. But there are plenty of moves you can do even if you have the world's tightest hamstrings.

Video: If you're inflexible, you might feel like there's no point in trying to stretch. But without stretching, how will you ever get more flexible? A session like the one in today's video can help.

If you have back pain, yoga may be the last thing you feel like doing. But after 12 weeks of a gentle, beginner-level yoga program, people in a recent study had as much pain relief as those who did physical therapy sessions. And either type of exercise worked better than doing nothing at all.

For many of us, cartwheels are a relic of our childhood. That's unfortunate because they're a lot of fun and a great way to improve our coordination, strength and flexibility, too. Here's how you can roll and tumble around like a cartwheeling pro again.

Breaking up long hours of sitting with stretching or walking breaks sounds very nice in theory, but putting it into practice is easier said than done. Well, here's a yoga routine that takes you only three minutes to complete. (Plus, you don't even have to leave your desk!)

You can do the most amazing warm-up, flexibility and mobility routines, but you still spend a ton more time not doing those things, which could literally be a pain in the neck. Whether you're sitting, standing or lying on your side, Adam Bornstein of Born Fitness shares some tips to quickly right your posture.

Your calves and ankles are under-appreciated muscles that work hard to keep your body steady and balanced while you're standing, walking or running. You might already be stretching your calves, but GMB shows you how to do them properly.

Being able to touch your toes definitely means you're flexible, but it's also a fair indicator of how well you can lift heavy objects, move around in everyday life and squat or deadlift in the weight room. If you can't reach your toes, these exercises will help.

Despite the weird name, "deadbugs" work your core unlike any other exercise. Crunches and sit-ups do very little to resist letting your back arch and "extend", which can then contribute to posture problems and low back, knee and hip pain. This is where deadbugs come in.

Traditionally, you learn to squat from top to bottom, but many variables can limit your ability to squat well or to depth. For some, bad flexibility in the upper back, ankles, hips and calves are to blame, but it's also insufficient practice. These drills help you work on both.

Video: You and I probably spend too much time sitting. Excessive sitting makes our hips very tight, which in turn, can affect our posture and make it harder to perform our best or move freely in general. If you have to sit for work, try a few of these hip stretches daily to keep that important joint healthy.