Our wedding will be in CA with most of our guests (ourselves included) traveling from the east coast. FI's parents are paying for the bulk of the costs, and although they previously did not care at all, they've now decided we should host a welcome event of some kind. Great! I have no problem with this since I've been suggesting it for months. With that said, it could be over 100 people, so costs could get out of hand quickly. The day before the wedding we will be doing the rehearsal in the morning followed by lunch and tourist activites in San Francisco, so happy hour is out. Do you think an 8pm cocktail hour would be fine? Any other ideas? Everyone will likely be staying at this same hotel.
ETA: what's the best way to spread the news about something like this? In invitations? Separate invitations? Something I leave with the front desk of the hotel as guests from our party check in? :-\