here is some of what i had submited in my application. It may looks like alot...but.. it is better than getting refused...
communication
printout of screen if you chat via video cam. Yahoo will show the date on the camera screen. YOu can use the print screen on the keyboard to do that and then save it in paint or any photo editing program by doing pasting it.
Emails.. gmail is amazing for that purpose.. saves sent messages and logs chats as well... This has helped me alot as to proof how we met as I was telling my friends all about it so sent emails helped alot.
If you are using prepaid cards for mobile phone, then send a few and explain that you used cards and you don't have bills.
phone cards history.
I used a website called thephonecardstore.ca u can only use it if you are in Canada so your spouse can use it to call you. Cheaper than phones.
It is amazing and they track ur orders.
phone bills, cellphone or inland.
Electronic greeting cards.
photos
Intimate photos and smiling... one time a person got refused coz he wasn't smiling on photos. looooooool silly reason but it happened.
photos with family and friends.
Wedding photos
engagment photos
Trip photos
Honeymoon,
Hotel receipts
photos,
room car
Tickets or boarding pass
Entry exist stamps from passports.
Any annoucments in the newspaper.
Letters from two official people that know you or your spouse and know that you are married. It is better if they are Canadian. Someone like a boss would be better. This is better come from your spouse. She can ask them nicely to write something to proof that ur relationship is geniuin.
Letters from family and friends to support that you are married. I had tons of letters on mine.
envelops addressed for both you and your spouse showing the same address but your name on one and hers on one.
Wedding shopping
Any receipts she got when she was preparing for wedding. Clothes, tiara, wedding dress, etc, anything and everything, wedding ring receipts...
Wedding itself, wedding hall receipts.. cake order receipts..
Gifts receipts from both of you if you don't have receipts, then take photos of the gifts and send them...
Greeting cards from friends and family.
letters of employment from both of u,
bank statments if you have savings...
Proof that you pay rent and things like that...
university grades even if they don't request them... Especially if they are good grades.... it proofs you worked hard.
I sent in my pregnancy positive test along with ultra sound.
my evidance was 2kg and I paid 1000 le to send it via DHL.