2) Spare or Replacement BlackBerry Batteries

The battery inside your BlackBerry just may be its most important component. After all, when you're out of the juice, the fun, the work, and everything in between is over&until you can recharge, at least--or pop in a replacement battery.

BlackBerry Bold OEM 1400mAh Batteries

You can never really comprehend the value of spare BlackBerry batteries until you really need one. So why not just take it from me: You won't regret spending a bit of extra scratch on a replacement battery when your device dies at some inopportune moment, but you're able to simply switch out its power pack.

Pricing on BlackBerry batteries varies by device model, but most can be had for between $20 and $30--less for batteries for older 'Berrys. Currently, a replacement battery just like the one the BlackBerry Bold ships with, the 1400mAh version, sells for as little as $26 on Amazon.com. Extended 1650mAh Bold batteries retail for about $50 on Amazon, while 3500mAh batteries with replacement covers go for about $55.

3) BlackBerry Screen Protectors

Whether or not you use a screen protector on your smartphone seems to be a matter of preference: Some folks love 'em, while others, well...others don't.

I fall into the former group, as I carry my BlackBerry mostly naked in a jeans or jacket pocket, and I don't use a holster or other case for protection. That means my device often mixes it up with keys and lighters and other potential damaging knickknacks. If I didn't use a screen protector, my BlackBerry display would look like a skating rink after an NHL playoff game.

BlackBerry Bold Screen Protector

I prefer BodyGuardz's screen protectors, since I've had very good luck with the brand. In fact, I've been using the same BodyGuardz screen protector for almost six months, and it's barely showing its age. However, BodyGuardz aren't exactly cheap. You can buy two complete sets that fits and protect the BlackBerry Bold for $20 on Amazon, or you can pick up two screen protectors (recommended) for $15.

Screen and device protection from other companies, like Zagg, are a bit more affordable at $12 or less on Amazon. And you can even pick up generic screen protectors for less than a dollar each.