Anniversary plans

What are some of your favorite anniversary memories. What have you done for your anniversary in the past? When do you think that you should do a vow renewal ? Do you feel like every year should be a big party or just the major years 10,20, 30 etc? This is my 2nd year wedding anniversary coming up on the 11th . I want to do a vow renewal with a huge party for my 5th anniversary. The years fly by it seems like I was just planning my wedding. So please flood me with some of your anniversary celebrations.