I know someone who met his wife due to him losing his wallet! she found it, and called him, then brought it to his apt to return it. They started dating, and 20+ years later, are married with 4 kids!
I almost lost my wallet on a cross-country trip with friends. Three of us were dirivng from NJ to AZ, and back again. As I am the planner and "responsible" one, they told me I could hang onto all our pooled funds (for gas and hotels there and back) I had that in a separate wallet, about $500 in cash and traverler's checks.
We stopped at a gas station in TN, I think, and I went inside to pay, and realized the wallet was NOT in my bag. I got frantic, thinking I had lost it all, and started looking around the van. Thankfully, it had falled out when I pulled something else out, and was lying there on the ground. Whew. After that, I MADE them each take 1/3 of what was there, just in case, so we would only be out a portion, not all our funds.