If there is one thing I have learned the past one and a half years in terms of more artistic photography, it is that you can find interesting subjects anywhere - just keep an open eye. Here is a good example from our recent China trip. It is just an empty coffee cup left on the street - and makes for an interesting abstract shot.
Camera: Canon Powershot Pro1 8 Megapixels, handheld
Exposure: 0.008 sec (1/125)
Focal Length: 7.2 mm
Post-processing: Picasa 3.0