Dating sure isn't like it used to be-and that's a great thing. The intersection of dating and technology has opened the doors to newer, easier, and more efficient ways of finding a compatible partner. Creativity and science play a role too. For example, smell dating. This dating service creates matches based on smell. Participants wear a shirt without deodorant for three days. Samples from the shirts of several participants are shipped to a potential match who can choose one (or none) just based on the scent and pheromones.