My sister and my cousin were born on the same day! For their 21st birthdays, I offered to plan them an afternoon out in the city with with family, then later with friends! This is the custom invitation image* I made for them and then texted and e-mailed to all my relatives. I didn’t need any home addresses, stamps or envelopes! My family loved it and I loved that I didn’t have to explain the plan two dozen times because everyone asks the same questions. Invitation flyers are a great way to make sure you and all your guests are on the same page!
*Image altered to hide personal information.