At the meeting tomorrow (or today if its already tomorrow) I was going to join ARC. Is one membership good for the household? Or do I need to sign the GF up as well?
Welcome! One membership is good for one member. Other members of your family can be added as family members at $10/ea per year.
Your SO would only NEED to be a member in order to be a forum participant with full membership priveleges.... however, you might look at it this way... attending the summer BBQ meeting and the Holiday party for free (as members do) would more than pay for that.