Originally posted by pointman:
...<snip> a Hotel should always get an imprint of your card and signature when you check in <snip>...
Some hotels (e.g., Hilton Crystal City at National Airport in DC) never take an imprint of my card. I've asked them about that several times, and was told that they didn't need it, as long as I was planning to pay with the same card that has been used to guarantee my reservation.