These are the recently introduced Post-it Extreme Notes,Post-its that are water resistant and stay stuck to nearly all surfaces including wood and brick through the rain, cold or heat (although they can't be applied to already wet surfaces). What took so long? You can get a 3-pack of 45-sheet pads on Amazon for around $5. Granted I'm sure these will reach in handy for a lot of people who need weather-resistant Post-its, or but I don't,I just need the one I beget stuck to the bottom of my computer monitor with all my passwords on it. Keep going for several examples of extreme Post-it usage including hot water pipes that should probably get marked with something a shrimp more permanent than a paper rainbow.
Source: geekologie.com