One of my biggest pet peeves is when people don't know the difference between spellings and usages of certain words. With most people, I can tolerate a mistake or two, but in published material and among my writer friends, I expect better.
Since I'm too lazy to continuously come up with ways to explain these things to people, I am going to borrow from a comic published by The Oatmeal.
These are just four of the graphics they made to illustrate the point, but it makes itself pretty clear. If you don't know the answer to something, just look it up! There is more to the internet than games and Facebook.
What has your experience with grammar been? Share the fun and joy below!