I qualify for this challenge as to date I have eight finds on 31st October.
For the purposes of this challenge I'll pick one of Natterjacktoad's Halloween caches Fright Night - The Body Farm. Here is my log of 31 Oct 2011.
I couldn't get the GPSr signal down below 10 metres here so I decided to just use the hint. There was one place that I became convinced was right and I spent a very prickly five minutes searching all around it. Eventually I gave up and tried somewhere much more sensible and this time found it straightaway. I felt a bit daft to take so long finding an easy hide.
I liked the container.