@Jylly18:

The only bad thing about the "trade" strategy, is that Tosca learned that everytime she takes something she shouldn't (DVD, Remote, etc) she will get a treat to give it back to me. This has actually reinforced the behavior more! So manipulative 🙂

There are days I'd be happy for anyone to find the remote in this house! Just put it on a "find the remote" cue. (Or just put it up when you're finished with it. - nah)