I’m going to be right here until I get another message from myself
This morning I was doing some Safari debugging, and wondered if there was a good javascript shell available for Safari these days. So I searched Google for “javascript shell for safari”. And there on the first page of results I saw this:

Yes, Google knew that out of all the billions of pages on the web, my very own del.icio.us bookmarks are one of the best sources of information on javascript shells for Safari. And it was right - months ago I bookmarked the Mochikit Interpreter, noted that it works great on Safari, and prompty forgot about it. Fortunately Google was there to remind me.