This week marks Lifehacker's 8th birthday, and to celebrate we put the call out to you to help us determine what some of our best tips, tricks, and guides from the past eight years have been. A lot has changed since 2005, but one thing that hasn't changed is the dose of quick and simple tips and hacks combined with longer guides and how-tos that we work hard to bring you every day. Here's are five of those tips that you, our readers, told us stand out in your mind the most. More »