So you bought an IP and finally its settled and you take possession, doing a clean up etc. What's the strangest thing the previous owners left behind? For me, it was one of those old, massive safes that weighs a ton. Found it on the floor in the kitchen cupboard. Took about 30 mins to drag it out to the garden, went to Bunnings to buy a sledge hammer and cracked it open. Found some birth certs, passports, keys and $20 is 50c pieces as well as about $150 of the old Australian notes. I think they forgot the password years back and just couldn't be bothered with it!