Today we have a rainy day with short bursts of sunshine. I know as artists that being stuck inside means checking out reference sketches or photos or maybe painting a still life.
Why not try something new. I used masking tape and taped a landscape format with it on my sitting room window. You can use a portrait format, square, long , even a round porthole - anything you like ! I now had a view through this window of the roofs above our village . You can either sketch your own particular view freehand or tape a piece of paper over your masking tape window and trace what you see. The light shining through your paper will make the outline easy to follow.
Then , just to make things more interesting, paint everything you see through your 'window' in its opposite colour on the colour wheel - in other words, its complement.
Hope you give it a go and have fun.