• Liza Minelli and David Gest: $3.5 million
• Paul McCartney and Heather MIlls: $3 million
  
• Elizabeth Hurley and Arun Nayar: $2.5 million
• Tom Cruise and Katie Holmes: $2 million
• Elizabeth Taylor and Larry Fortensky: $2 million

For some, Valentine's Day is a celebration of an existing relationship. For others, it is a first date that could become something more. Forbes decided to help out first-daters this year and put together a list of the most expensive cities for a first date. The only downside to a study like this is that, since you are unlikely to be traveling too far outside your comfort zone (or your date's, for that matter) is that the only thing you really gain is a knowledge of how much less expensive your meal would be somewhere else. And, unless you're in the number one city, the knowledge that someone out there is paying more than you are.

There are some very expensive, but luxurious train trips in the world, most of which wind through rustic mountains or speed across pristine landscapes while pampering their customers. The most expensive train trip in the world, however, does not offer such an experience. It is a Tube trip from Covent Garden and Leicester Square on the Piccadilly line, a trip that covers only .26 km (.16 mi.) in 43 seconds. It costs £4 ($7.75), making it more than twice as expensive as a trip on the Tokyo metro and four times as much as a ride on the NYC subway. And if you took that pricing scheme and extended it to other types of travel, a trip from Los Angeles to New York (2462 miles) would end up costing $119,253.13.

Forbes has the scoop on the most expensive jeans. They cite trends towards custom-fitted denim and lots of added detailing, including embroidery and crystals, as major reasons that prices were driven upwards, but not every pair on their list has these features. The single most expensive pair was 115-year old Vintage Levis sold on eBay for $60,000, followed by the significantly newer Ernest Sewn custom jeans, which cost up to $1,000 per pair.

Other pairs we liked this year included Levis iPod Jeans and Denim for Immortality Jeans, though we also liked the opportunity to make our own from Denim Design Lab.