The FitBit is a tiny device that clips onto your clothes during the day, or can be worn on a wrist strap while you sleep. It tracks all your movement, all day long. At night it will determine the quality and length of your sleep. Think of it like a pedometer on steroids.

MyZeo sleep “coach” tracks your sleep with a forehead sensor strap. Choose this device if you want to delve deeper into sleep tracking. The Zeo will not only tell you how you’re sleeping, it will actually help you improve it.

One of the most popular exercise trackers, RunKeeper works with a mobile device’s GPS to track your workouts in real time. The app tracks pace and distance, and provides audio cues in your headphones. The accompanying web portal adds a social element to your workouts, allowing people to compete in teams, and giving “fans” the opportunity to track you in real time.

Another exercise tracker, DailyBurn is more useful as a nutrition log. Enter all the foods eaten at each meal, and receive an overview of how much sugar, fat, carbs, etc. you are consuming. Correlate this to your workout performance and you may find that that double cheeseburger took 10 seconds off your average mile.

The first Wi-Fi-connected body scale records your daily weigh-ins and body fat percentages to the Withings site for easy tracking over time. There’s now a blood pressure and heart rate monitor added to the product line, so you can really drill down to see how your athletic performance is improving (or not) with your activities.

SleepCycle is a cheap iPhone app that measures your sleep quality through the accelerometer in your iPhone. Place the phone at the head of your bed and it determines your level of wakefulness. It’s a cost-effective sleep monitor, but might not work as well if you have dogs or a significant other in bed with you. Definitely use it in conjunction with Sleep Timing to determine the best time to hit the hay.

Mint tracks your money — all of it. Using the logins from your checking and savings accounts, credit cards and investment accounts, Mint provides an overview of where your money goes every month. You can also set budgets; Mint can be set to alert you when you go over your grocery budget for the month, for example.

MoodScope provides a platform for tracking your mood quickly and easily. There are many different philosophies around mood tracking, but give it a try and see how it becomes relevant to you. Did you have a huge fight with your girlfriend yesterday and have no idea why? Maybe it’s because you were in a bad mood, didn’t get enough sleep and skipped breakfast.

CureTogether is not just for people with chronic illnesses; most people have medical issues, if only the occasional seasonal allergies. CureTogether helps you track symptoms, share information with others and, ideally, find treatment and cures.

Looxcie looks like a Bluetooth headset, but sports a full-color camera that constantly captures life as you see it. Think of the possibilities: Why did your friend beat you on the go-kart track? After checking the Looxcie recording, you’d find that you’re lacking proper turn form.

Foursquare is a powerful self-tracking tool — knowing where you were during certain events can be very useful. Do you always have an allergy attack when you visit a particular park? Do you have a bad night’s sleep every time you eat at White Castle? Partner Foursquare with a service such as If This Then That to automatically put check-ins in your Google calendar or an Evernote notebook.

Daytum lets you track anything you want, and then will represent it visually. Whether your weight, number of pages you read weekly or time spent walking the dog, just input the number and Daytum will graph it for you.

Install RescueTime on your computer and it will watch silently as you browse the web, send email or play Spider Solitaire. It will show you how you spend your time and give you the tools you need to be more effective while at the computer.

Attach the energy detective couplers to your electrical panel and get real time information about how much electricity you use. Go hunting for the energy-inefficient culprits in your household to save money and the environment.

Lumosity challenges your brain with cognitive skill games. Work through each puzzle to theoretically improve your intelligence.

A wealth of information lives in your DNA: disease risks, biological traits and even your family history going back thousands of years. Send 23andMe a swab of the inside of your mouth and receive DNA results, and you’ll get updates as more is discovered about genetics.

Voyurl is tiny plugin that sits in the background of your browser, logging every website you visit and how long you stay there. In a few days, it will be able to tell you which sites you spend the most time on. Social networking, anyone?

Sex tracking: You tell the site when it happened, how long it lasted and with whom you did it. If you really want to get into it, the iPhone app Passion uses the phone’s accelerometer to give you a score each time you do the deed.

There isn’t an easier way to self-track than with AskMeEvery, which will text you the same question once a day. How many miles did you drive today? How many hours did you spend with your family? You simply text the response back and AskMeEvery will graph the information for you.

Stickk helps you set a goal and stick to it, with incentives of monetary rewards and social pressure. Want to quit smoking or lose weight? Get money and friends involved and you’ll hit your goal sooner than you think.