I´ve spent a few years by photographing details of soap bubbles or oil and water on CD. Winter can be long in Czech republic and it is sometimes boring for photographer because it gets dark very early.
But you can do this and you never get bored. You definitely always find an interesting colors, different source of light or better angle of view.
Everything you will need is: camera, macro lens, lamp, soap, water, oil and CD + your imagination :)
So let´s have fun!