I want to be able to invite my co-workers. I work in a situation that is very close-knit; I cannot invite a couple of them and not everyone. That's ok, I can swing that. My question is: Is it at all acceptable to invite the co-worker and not his/her spouse? At just over $100/head, my wedding is at the top end of my budget and I'm feeling pressure to make sure I only invite people my fiance know and are familiar with. Anyone have any helpful advice?