Hello fellow bridesmaids/bridesmen/bridespeople,
*I apologize if you saw this on another location of the forum, I didn't realize there was a specific invitations discussion.*
I am looking for some advice. I'm the MOH for my best friend and in the early stages of planning the different bridal party events - like we've got time on our sides. So I'm trying to sort a lot out now so that we are not overwhelmed as the days draw closer.
There are three of us bridesmaids in total, two bridal showers, and one bachelorette. The guest lists for both showers are HUGE to say the least. 
Would it be rude for those that are invited to both the bridal shower and bachelorette to include two invites in the same envelope (save a little on some stamps)? The costs are adding up very quickly due to how many people are on the guest list and this has become a slightly daunting experience for myself. 
Thank you so much in advance for any advice!
A fellow MOH