"Training to Be a Legend" Racerback Tank

Recommended by Frieda Johnson, copy editor

Let out your inner geek with this Legend of Zelda workout tank! Perfect for the gym or around town, this shirt comes in a variety of colors and styles that are sure to please. What better way to motivate yourself to work out than with gear you're excited to wear?

If video games aren't your thing, the website has a variety of other quirky and geeky workout shirts, including themes such as Harry Potter, Pokémon, and Doctor Who.

Signature Testosterone Booster

Recommended by Hobart Swan, senior content editor

Testosterone boosters exist in large part to help people—usually, but not exclusively, men—slow the effects of aging on our ability to recover faster and build bigger, stronger muscles. Signature Testosterone Booster features two of the best-known herbs for testosterone support, KSM-66 ashwagandha and fenugreek. The KSM-66 goes through a special extraction process to yield the highest-quality ashwagandha, while the fenugreek is standardized to 50 percent saponins. Combine these natural, clinically studied ingredients and look forward to increased performance in the gym and beyond.

Grenade Shaker

Recommended by Jason Appelman, content editor

The Grenade shaker is, well, the bomb. It's rugged, locks solidly, and comes with a removable storage compartment for protein powders. Heck, you can even enlist the Grenade shaker as a water bottle and use the stash compartment to store those car keys that keep sliding from the pockets of your shorts every time you bench press. Best of all, you can "hot potato" the Grenade shaker to your kid and watch the giggles detonate. But seriously, it's a great shaker, it doesn't leak, and I use it almost every day at work.

Dang Lightly Salted Coconut Chips

Recommended by Shoshanna Cohen, content editor

While a clean bodybuilder diet has many benefits, a good crunchy snack is typically not one of them. It's hard to get crispiness without unhealthy oils or carb overload. But these satisfying chips are just coconut (healthy fats!) and a little salt, so they don't spike my blood sugar and set off a feeding frenzy. While coconut chips are becoming more popular, this is the only flavor I've found without any added sugar. And, dang, they're crunchy!

Smart Rope by Tangram

Recommended by H.S.

I wasn't into jumping rope until I did Jamie Eason's LiveFit trainer over the past few months. One thing I learned is that if this activity is part of your daily routine, you really want to have a decent jump rope. The gym where I work out had two choices. One jump rope was made of leather, which gave it a nice weight, but I spent 15 seconds of every 60-second workout trying to untangle it. The cotton rope never became tangled, but it was virtually weightless, so it took a ton of energy to keep it moving. My arms would tire before my legs.

The other thing I learned was that jumping rope is a really great exercise: It burns you out fast, and gives you a good full-body workout in the process. So, I'm investing in a Smart Rope. LEDs embedded in the "rope" (it's not rope) display your workout data in midair as you spin it. Each handle has two sets of ball bearings, so the rope really glides around. And, it looks so high tech you can pull it out in the middle of the hall at work and amaze your colleagues. Sure, at nearly $80, it's an investment, but it's an investment in your health.

The Russian Kettlebell Certification

Recommended by Nick Collias, executive editor

There are several kettlebell certifications to choose from these days, each with its own unique elements, and in many cases, with plenty of overlap. So why go with what is perhaps the most old-school among them, the RKC or Russian Kettlebell Certification? In a word, size—small size, to be exact. You pay for direct access to great instructors in a setting where you're one of perhaps 10-15 attendees, rather than 50 or more. Given that my standard caveat about kettlebells for curious lifters of all types is that "some quality in-person instruction is essential," that's a big advantage.

I attended the RKC level one, taught by Bodybuilding.com contributor Max Shank, two years ago; and the RKC level two, taught by strength coach Dan John, just last month. In both cases, I left with a notebook packed with years of programming wisdom, game-changing technique cues, and great fitness insights. Each event reflected the coaches' unique approaches, but also left me with a strong foundation of essential knowledge to pass along. Be forewarned: The physical standards you must meet to pass levels one and two are no joke, and the RKC snatch test (100 reps in 5 minutes with 53 pounds for most men, 35 pounds for most women), in particular, is a special challenge unlike anything else in the world of fitness.