I play online solitaire. Besetting sin. (Hereditary besetting sin. My grandfather and my mother and my aunt and my younger brother were/ are all solitaire fiends. The online part that means you never have to shuffle a deck is just a godsend.) There are ads, of course, including fund-raising ones for memorial Olympic coffee mugs.
Can't get over the blurb that goes 'Roll over to support our teams!'