I use baking soda & peroxide for tough cleaning jobs and it works great. I found the following remedies on:
http://www.thesuperhandyman.com/tips.html#anchor12638
INTERIOR WALL CLEANER MAGIC
½ cup ammonia
¼ cup vinegar
1 gallon warm water
Use one sponge to apply cleaner. Use another to rinse off with plain water. When cleaning walls, always start at the bottom and work up. Less chance of streaks.
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MORE WALL CLEANER MAGIC
½ cup Borax powder
½ teaspoon of dish washing detergent
1 Tablespoon ammonia
2 gallons warm water
Use in the same manner as with the above mix.
Good Luck!