Long car rides or waiting in traffic are perfect opportunities to play tic-tac-toe with a pen and paper, or you can make your own travel-sized board game out of stones to keep the kids entertained on long car rides or days when you're stuck in traffic and the kids are bored play tic tac toe. Tic-tac-toe is a classic game that can be played with a pen and paper or with stones. Carrying one in your handbag is also a smart idea in case you find yourself waiting at the pediatrician's office or need to pass the time while keeping your child occupied.