Other things that are also sins/abominations:

Eating lobster
Wearing clothes made of more than one fabric
Trimming your beard or sideburns
Getting remarried
Planting more than one crop in a field
Getting raped (this only goes for the ladies, but you can smooth things over by marrying your rapist, so...)
Having a wet dream
Eating rare meat
Touching a dead animal
Menstruating (and/or earning your "red wings")
Getting a tattoo