The two main things I recall about this woman's testimony was her saying "I don't read cursive."
Her note was written in cursive with a forward slant and her signature is cursive in a backward slant so they asked if she wrote it. Clearly she hadn't. In fact she couldn't even read it.
Second, Travon's father is bald and he sat in front of a woman in rather large wig. As they both shifted around it appeared as if Martin's dad was wearing the wig.