Wunderlist is a wonderful ToDo app. I use it on all of my devices and it's available as Chrome app too. And the best: It comes for free.

Day One is a simple way to journal. It’s easy to quickly enter your thoughts and memories and have them synced and backed up in the cloud. Day One is well designed and extremely focused to encourage you to write more.

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'Ever notice how people texting at night have that eerie blue glow? Or wake up ready to write down the Next Great Idea, and get blinded by your computer screen? During the day, computer screens look good—they're designed to look like the sun. But, at 9PM, 10PM, or 3AM, you probably shouldn't be looking at the sun. f.lux fixes this: it makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.'