Yes, iceberg is not a friend to salads [insert "it's just the tip of the iceberg" joke here...].
From our friends at foodreference.com:
ICEBERG LETTUCE
Iceberg lettuce got it's name from the fact that California growers started shipped it covered with heaps of crushed ice in the 1920s. It had previously been called Crisphead lettuce.
Iceberg lettuce is 90% water and has very little flavor, and almost no nutrients.
Confession Time. My name is Mr. Nibbles and I've never been bitten in the ass by a decent salad (I expect it's only indecent salads that bite. Do you have to pay extra for that?)
The worst salads I've ever endured were from a fish restaurant in NW11 (and well, every crappy restaurant and bar in Scotland - but they make up for it with great soup). The UK doesn't traditionally think of the salad as being worthy of its own course, and that's a shame. But as has been pointed out, you can get good salads in Britain. Well...England, at least.
I've worked and eaten in plenty of North American restaurants and I've seen some woefully bad American salads (limp produce, out-of-date ingredients, nasty dressings, quantity over quality) just as I've enjoyed some glorious (fresh, crisp, creative, no reliance on drowning it in dressing) American salads. The best salads I've seen were Canadian, but that's probably because I made them myself [smiley=wideeyed.gif].
As for size, there's does appear to be a cultural USA/UK difference regarding how big a serving of food is appropriate.
I know that some people believe that getting to take part of their meal home in a box represents good value. I think it represents the heebee-jeebees. A 2002 survey by the American Dietetic Association found that 51 per cent didn't know the proper temperature for reheating leftovers.
Re. food hygiene: never mind sucking fingers or rinsing dishes; it's doggie-bags you should be very, very careful with.