I am sure that most photographers would agree that lighting is everything!
As I have been doing a lot of head shots (beauty) lately and also close ups of cosmetics, I have found it hard to do all my work in the few hours of daylight - I like in Britain and it gets dark and gloomy fairly early on! rather than having to drag out my full set of studio lights, I have found that a daylight lamp - just using a GE Reveal daylight bulb with a standard cheap lamp would do - made for crafters is a great alternative for when the days just get too dark. Indoor lights are often far too yellow. It can be adjusted easily in photoshop, but when dealing with a lot of images, I like to be able shoot without worrying about how many hours I will then spend in Photoshop!