As much as the bad spelling grates, I had to share a lovely comment from one of my students. It was my first week back teaching after the Easter break this week, and one student wrote "I love the teecher" on the board. After a little coaxing, she explained that she loved my classes so much because she never knew learning Spanish could be quite so much fun.
If that doesn't inspire me to carry on teaching, despite the hours of planning and preparation, nothing will!