Photographing signs you might come across in a city can help tell a story about it. Sometimes the signs themselves are interesting enough. If you want to say more with the picture, see if the subject matter behind the sign is related to it. Neon signage will yield some of the most saturated color there is. With neon, you may want to try a few different exposures to see which help the sign read best.
Ethnic Neighborhood Signs, San Francisco
Pike Market Place, Seattle
© Chris Michaels, San Diego DPA Instructor