Is it necessary to keep the flight tickets, isnt it pretty clear on the passport when you entered and exited the fiance's country?

Keep all evidence that includes ticket stubs, hotel receipts, ATM receipts, trip itineraries, etc...

Well i didnt save the flight tickets....hotel..i stayed at her place when i went to see her...atm...took loose cash...

You only need to establish the connection and the first face-to-face contact with her. IF you didn't keep the boardingpass as ONE of the many proof that you two have met within the past 2 years prior to your petition for her K-1 Visa, you only need to show other evidence to let them know: Yes, we met once/twice and here are the evidence (photo of the two of you together, pictures of you with her family in Colombia etc, receipt from stores in her country. etc)

Good luck

My passport only has one stamp in it. It is from US immigration returning to the US. I've been to VN 3 times too. I made copies of my visas, gave itinararies, & gave ticket stubs to Tuyen for her interview .

In Colombia, with an american passport you dont need a visa...I have been stamped in and out every time i went down to see her, i hope this is good enough? Obviously i have over 100 pics, bank statements with flight purchases, dinners, a McDonalds birthday partyfor her son..etc....I also have over 200 calling cards and the cell phone and house phone detailed lists of every time i used the calling cards...Any suggestions of what else i should have, oh and she's pregnant with my kid..lol

Do you have credit card receipts from when you purchased your tickets?

Just out of curiosity...is there a reason you chose to post in the Asian discussion area? You might get more responses if you had it in a more viewed area.