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E-notes: Like Post-its, only reusable

Does the world really need Post-it 2.0? Ask those of us with Post-its habitually plastered on our monitors, walls, backs, and foreheads, and we'd probably be hard-pressed to come up with suggestions for improving the classic attachable notes.

Still, the designers at Sequoia Studio have come up with an inventive concept product called E-notes. The notes use tactile and flexible electronic paper technology and are powered by a solar captor. They can be stuck and unstuck to surfaces easily using a glue inspired by the adhesive that keeps the gravity-defying gecko in place. The best part? They can … Read more

A color-coded string tuner

If you don't have the big bucks to blow on a self-tuning guitar, there may be an alternative. The "eNote" by China-based Eleca is a "clip-on digital chromatic tuner" for stringed instruments that guides you through the process with a color-coded display. (Green = good, red = bad, etc.)

We have no idea how well this works, but it costs only $25, according to Slippery Brick--chump change compared with the prices of those expensive robo-guitars, which have yet to prove their worth in the music world at large. Then again, if you're colorblind as well as … Read more