1.
This link may have been posted before, but Jerofejew's text on Lolita reminds me that the 16th ('unpublished') chapter of Speak, Memory is also available (in German) at Zeit.de:
http://www.zeit.de/1999/9/199909_erinnerung.html
2.
The toothpaste problem and the "Pears" soap remind me of Martin Amis' comment on Joyce and Nabokov: "I claim peership with these masters only in one area. Not in the art and not in the life. Just in the teeth. In the teeth." (Experience, 117) I suspect they all use or used the same brand of toothpaste ("talent-o-dent": the company also produces dental gloss) - not exactly good for the teeth, but quite inspiring.
What hasn't been mentioned on this list so far, I think, is Martin Amis' comment on Experience and Speak, Memory in an interview on Australian TV in July 2000. I quote from the transcript (http://www.abc.net.au/lateline/s154354.htm):

TONY JONES: So we have become used to Martin Amis the novelist,
         obviously, manipulating stories, and the question here is whether you
         can, in fact, manipulate the story of your own life and whether that in
         the end could become part of a post-modern experiment?

MARTIN AMIS: Well, you're making decisions and following
         instincts in very much the same way as you do with fiction, but it's far
         more essayistic and discursive form.
         But your novelist habits are so engrained that, of course, you're
         looking for themes and patterns and symmetries, and you're trying to
         keep several balls in the air at the same time.
         I don't think it's -- I mean, I've done nothing in this book that Nabokov
         didn't do much more skilfully in 'Speak Memory'.
         There is a sort of high-end kind of autobiography and there's the low
         end.
         My book is nothing like as artistically patterned as 'Speak Memory',
         although it may look like 'Speak Memory' when compared to Joan
         Collins's autobiography.
3.
As there seem to be a few people in Germany subscribed to this list, it may be worth mentioning that there will be a stage adaptation of Lolita performed (by students of Bonn University who apparently also wrote the script) at the Brotfabrik in Bonn in April. In the notes (http://www.brotfabrik-bonn.de/veranstaltungen/Theatersaal/theater_dilaemma.htm) it says that the play tries to stay true to the novel, particularly to its language. Humbert's paedophilia is mentioned as long having been surpassed in brutality by 'real' child abuse.
Knowing that Albee's 1980 Lolita was a flop, I wonder if rewarding adaptations of the novel are possible at all, and I'm curious to see what this one will be about. Has anyone seen a good adaptation?