I work on a site where we have trash and recycle compactors, plus trees, etc. And I am my own worst enemy when it comes to to putting retractable pens in my pocket and forgetting to retract the point. (Spray and Wash works about half the time.) Restaurant grease is the worst - I usually send it out to the dry cleaners (again, with mixed results).

Any tips? The only one I can give is for white shirts - a bit of Boraxo and 2 tablespoons of vinegar brightens up real dingy shirts.