Possibility Changec (possibilitychange.com)
This blog began as the author's own reflections on her personal journal of change, but it quickly grew as more people resonated with her message. The focus is thus on all sorts of personal change.
Lifehacker is another standard in the lifehack scene. Its content ranges from mental tips to money-save tips to time-saving tips.
Reddit Lifehacks (www.reddit.com)
The best way to hack your life is to crowdsource the hacks. Reddit brings together nearly a million redditors to make lifehacking better.
Dumb Little Man (www.dumblittleman.com)
A variety of life hacks, mostly on the mental front––things that will help you enjoy and make the most out of life.
Marc and Angel Hack Life (www.marcandangel.com)
Marc and Angel are professional life coaches. Forbes even recognized their blog.
Life Optimizer (www.lifeoptimizer.org)
Their tagline is "Maximizing Personal Effectiveness," and that's just what this blog seeks to do. Through tips on all sorts of topics, Life Optimizer helps you become more effective in all that you do.
Positivity Blog (www.positivityblog.com)
Positivity blog sfocuses on change through positive thinking. While positive thinking can't solve all your problems, it is still a necessary part of an efficient, happy life.
LifeReboot (www.lifereboot.com)
Life Reboot focuses on raising awareness. Through awareness, the author suggests that you can learn to change your life.
Parent Hacks (parenthacks.com)
Parent Hacks focuses on tricks for raising kids, everything from making Christmas lists to putting kids down at night.
Flipping Heck (www.flippingheck.com)
Flipping Heck focuses on productivity, everything from apps to people skills.
Productivity 501 (www.productivity501.com)
Productivity 501, as the name suggests, digs into productivities issues on a more advanced level than other lifehack blogs.