Calamari, try Medela one, no lak mor... And wash the Avent ones a few more time, then no more lak mor...
For mummies thinking of stop wearing breast pads, let me relate my cousin's exp: She wasn't wearing breast pads, and couldn't find the nursing room in time, bb pressed on her, and half her blouse is wet. So either breast pads or bring an extra blouse for mummies with a lot of ss especially.
Sherin - Thanks for organising, and since everyone is promoting The very hungry caterpillar, let me know when it is included in the boardbook. Cannot buy paperbag, bb drooling non-stop.