For this year, I'm doing Harry McDougal from Outlaw Star.
Future plans include Vicious (Cowboy Bebop), Dilandau (Escaflowne), Sesshou-maru (Inu-yasha), Illapalazzo (Excel Saga), and Jinnai (El Hazard). It's going to take a long, long time, but hopefully they'll turn out well.
For my sister's first con, she's doing double crossplay: Gourry dressed in drag. ^_^
Be original: At least make a different mistake each time
Please do not disturb: I'm playing with my mental blocks
The Pessimists Pep Talk: Don't lose heart: they might want to cut it out and they want to avoid a lengthy search.