I love product photography, probably as it's one of the more geeky forms of photography! You need to think about location, composition, lighting, depth of field, focal length, white balance, I could go on.... The traditional product shot with the subject cutout on a white background has it's place but I prefer placing objects in an environment creating more of a narrative.
Night photography can be challenging, but with patience and a sturdy tripod it can be rewarding. I like to plan a route before setting out with a quest to take a number of pre planned shots, but quite often the best images are stumbled upon.