Things that grind my gears:
1. When people open potato chip bags upside down,
2. When "teachers" give you a workbook and expect you to learn things without even teaching the class,
3. Those pencils that have one side that is graphite, the other side that's completely wooden and unable to write with,
4. Relating to #3, those pencils that won't sharpen at all, no matter what sharpener you try,
5. When radios play the same exact song two-three songs apart,
6. When my friends show me a viral video I've seen weeks before and expect me to laugh,
7. That GF hasn't came out with a Sponge Pokemon yet.
That's just a few off the top of my head