I learned this month how to do 'in-camera' multiple exposure. During our cold snap this month and made wintery scenes from 2-4 overlayed images. it was pretty easy to do. The hard part was learning to create a nice composition. I like this abstract image I created at a frozen lake where someone had taken a polar plunge on the other side of that ladder. I took 2 images of the broken chopped ice on the water and overlayed it on the ladder. I like you can feel the cold in this image.