After regular use my cutting board is covered in lumpy bits of glue and smatterings of paint. Time for a spring clean.
Immerse the board in cold soapy water. Don't use hot! Hot water causes the board to distort. You'll never get it flat again!
Leave it to soak for fifteen to twenty minutes then vigorously clean of the glue and paint with a sponge.
Dry off with a soft cloth. Don't dry it on a radiator, you'll have the same distortion problem.
And there it is, shiny and clean, ready to go!