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It's no secret that you're being watched and tracked as you browse the internet. Companies want to know what you're doing so they can hit you with targeted ads. They do this using third-party cookies, tracking your activity across multiple websites. But how do you know who is tracking you? Luckily there's a free tool that can help.

Did you know you can still be functional on only four hours of sleep? It’s not ideal, but, in a pinch, it can be done — as long as you fall asleep at the right time, that is.

This incredible calculator from Sleepytime works by analyzing your sleep cycles and counting backward to determine the ideal times for you to fall asleep. When you wake up mid-cycle, you feel groggy and drained. If you wake up between cycles, you’ll feel much more alert.

A solid eight hours is always best, but this is a good resource to have up your sleeve, just in case.

Are you shelling out more on monthly bills than you'd like? You may be paying monthly subscription fees for services that you never use. We've found a tool that compiles all your subscriptions into one place so they are easy to manage. You can cancel any unwanted services effortlessly and save big bucks.

Want professional photographs but don't have Photoshop skills? This online program will help create new photos free of pesky objects you don't want in the shot. We'll show you how to use it.

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