1) The book I lost before finishing it, on the Orient Express in the early 70's
2) The bad of sensi I left in a pair of pants I returned for not fitting (or rather, the equivalent, the same bag would be terribly stale by now, this was maybe 17 years ago)
3) The ring with my initials on it that I lost somewhere in Charlottesville in the mid-eighties
4, 5, 6 and maybe 7) (Don't know if this counts) - if a couple has several miscarriages, can they ask for the babies that might otherwise have been?