A sure fire way to demotivate those around you is to be a vampire-like self-righteous pedant, sucking the life out of others, perhaps unknowingly.
A few tips on learning that I pulled from Roy Peter Clark's book How To Write Short.
iOS's caching behavior (for Bluetooth Low Energy peripherals) is a bit annoying when interacting or observing devices that act as multiple peripherals or broadcasters.
Moving on from TI CC2540EMK USB Dongle to Ubertooth One.
Combine bluetooth low energy chips with dust sensors and clean your house when it's actually dirty.
Adobe AIR has retina support for flash-based apps, but not for its customized Chrome browser when shipping JS/HTML-based apps.
A working ember-precompile for EmberJS 1.0.0-rc3.