1. Preheat oven to 350 degrees.
2. Beat the butter and sugar until mixed, then beat in the egg and the vanilla; continue to beat until smooth.
3. Stir in flour, baking soda, cinnamon and salt.
4. Stir in oatmeal, chips, and raisins.
5. Drop by tablespoons onto lightly greased cookie sheets; use a fork to flatten cookies slightly.
6. Bake about ten minutes, until golden and still moist.
7. Cool on pans for one minute, then transfer to a rack to finish cooling.