Put on the safety goggles and gloves to ensure safety.
Decide on the material to cut. The procedure is different for different items. For example, if cutting synthetic glass, acetone should be used for scrubbing grease and dirt from the surface of the material. On the other hand, cutting glass with acetone involves using a lighter.
Apply acetone to the surface of the material to be cut. If cutting glass, however, soak a string in acetone.
Wait for a few minutes, until the acetone removes any trace of debris.
Use a knife or similar tool to cut the material. The process should now be much easier. If cutting glass, tie the string soaked in acetone around the glass and light the string with a lighter. The string will cut through the glass.