Mavericks has added some long overdue features to Finder, such as Tabs. I've been using tabs for a few years, and I'm glad to see that a third party app is no longer required. But there are still many nifty features apps like TotalFinder provide. Now there's a free equivalent of TotalFinder. Learn about it here...
Two free tools to easily spoof (change) your computer's MAC network identification address, allowing you to use free yet time-restricted Wi-Fi networks indefinitely.