Twice I've left an iPad in the seat pocket. Once, I was paged while still airside and ran back for it, and the other, I picked it up at SEA the next day from lost & found.
Left an iPod in the seat pocket on a Swiss ZRH/EWR flight. Never saw it again.
Forgot some gift tchotchkes in a bag under the seat in front. Nope. "We didn't find anything." The f you didn't... enjoy those $20 Funko figs tho.
Left some chargers and cables in a shabby Candlewood (isn't that all of them?)... they held them at the front desk for a local friend to pick up and post to me.
Overall, not bad. Still salty about that iPod as it was the last generation made...