One of the things I never get enough of, is the view on the sky from my balcony. And I can't stop myself from making pictures of it either... This morning, on January 6, we had a chessboard sky, with all the white kerosene lines of the 'airlines- crosspoint' above our heads making a fascinating pattern.
A collection of my skies that can be used as stock images can be found on deviantART: http://steppelandstock.deviantart.com/gallery/24414555/Skies