I found $1 the other day, and wifey picked up an R.E.I branded 32oz. Nalgene water bottle just yesterday. A nice framing hammer before that, and many other things.
My most outrageous find happened 2 weeks ago. It was a blue women's clutch purse, just off the shoulder towards an on ramp to the interstate. I was hauling ass at 25mph but noticed the blue color was out of place. I always on the lookout for awesome stuff, so I doubled back and picked it up.
I opened it up and found, $200 in twenties and a $1 bill from 1928, the 21yr old females driving license, her social security card, her university student ID card, a gift card, a prepaid visa debit card, her bank debit card, and miscellaneous rewards cards for different stores. I looked her address up on my phone, saw it was 1.2 miles from me, and pedalled off to find her.
I checked on facebook to see if I could find her and send her a message. I did find her, and saw photos of her and friends. I'm glad I did. When I knocked on her door to ask for her by name, her roommate answered. Her roommate was in the photos on facebook. I felt comfortable handing over the wallet to the roommate, and was able to get the college student most of her life back to her. Her roommate called her immediately, as I stood there and told her to come home from the DMV, a guy had just returned her wallet!
Success!