It is permissible to place , for example , an egg or water , in sunlight on Shabos to warm it up.
Shulchan Aruch , Orach Chaim 318 : 3.
Now may be a good time for a gem of Torah study.
www.GemsofTorah.com
Gems of Torah by Rabbi Moshe Goldberger. We can use these essential "Gems" interspersed throughout our day to add vital meaning and inspiration.