I realize that my voice will not be heard, but our most recent flight was the last straw and I want to complain. An unknown Continental agent logged into my record at midnight before departure and it took almost an hour at the baggage drop to resolve the issue. But the last straw was the lost luggage----the third lost bag in six flights!! It was actually a bag checked in by my spouse, independent of my ticket problems. All bags have been checked in with at least one hour to spare, complete with ID and Elite priority tags with the correct destination codes (I alway check!) . Last week my bag from IAH went to Boston instead of Tampa, and it was more than 24 hours before it was back in my possession. Several times it has taken two days. Would a letter or phone call be best? Flying next week, going with carryons. Thanks