$0.48 for an entire bottle of glass cleaner - rated the best homemade glass cleaner by Crunchy Betty. Recipe: 1/4 cup rubbing alcohol, 1/4 cup white vinegar, 1 TBSP cornstarch, 2 cups warm water. Combine everything in a clean spray bottle and shake well.
Robotic-looking dragonflies and other insects have been spotted at political events and protests in Washington and New York, hovering over antiwar rallies. While no government agency admitted to deploying the robots, the technology has been in the works for decades and some entities have admitted that they’re currently trying to perfect it. Which means, of course, they've been in use for quite some time.