On Monday evening I submitted a new puzzle cache, it was published last night & found at 07:30 this morning. The finder sent me a note to say he's found the cache on the floor & he told me where he'd hidden it. I thought that the magnetic tape I'd used might not have been strong enough, so I went and replaced it this evening with a proper nano. When I got to the signpost I was surprised that none of the post was magnetic, but luckily I found a bracket to stick the nano to.