YSK: Websites don't always have to tell you about 'cookies'.

When you log into a website for the first time you almost always see that cookies warning. Why is that? Well among numerous reasons, it mostly causes the guys who make the rules don't know what they're doing. Anyways, the point is there's a workaround. HTML5 has a 'local storage' feature which is very different from cookies, but also stores locally. Often it's actually a lot easier to use than cookies. Websites are not required to notify you when using this feature.