Chrome: Sometimes, you have a site that (ahem) you always want to visit in incognito mode -- yes, even if it isn't porn. When you want to be sure a specific website always opens in Chrome's Incognito Mode, Incognito Filter can help.
After you install the extension, you can add sites by either clicking on the button in Chrome's toolbar, or by opening the extension's settings panel and adding them manually. The button also gives you the option of opening a black Incognito window. From then on, those sites will always open in Incognito Mode, so they never go into your browsing history or leave cookies on your computer.