I really liked our Affidavits.  I enjoyed reading my friends, family and associates writing about us.  It was very touching and I kept copies of them all.  You should put out a request and see what you get back.  Some of your friends/family may be really good writers; you never know.  Also, I tried to focus on affidavits that would corroborate other evidence.  e.g. an affidavit of someone who is also in photos with you and spouse.  or, I included an affidavit from our interior designer and she described the projects we did at our residence, that corroborated that we actually lived together at our address and it matched the address listed on both of our driver's licenses.