I like to play lots of what the industry calls "casual games." You can download them, play them, and you don't have to worry about finding a save point. At the moment I recommend two great games for casual gamers....
Hammerhead which you can find at www.shockwave.com. It's basically whack-a-mole, except with gnomes (that's right...gnomes) and it's intoxicatingly fun. Is it complex and involved? No. Is it perfect for playing between work and dinner? Yes.
Luck Charm Deluxe, which is also at www.shockwave.com. It's a great twist on the "connect three" puzzle games. Instead of connecting three you can connect as many as possible of the same kind of shape. It's a great puzzle game. I find it more mentally challenging than Bejewelled. So ditch Bejewelled and go try out Luck Charm Deluxe.