So, what do you do? First, removal of the initial insult is top of the list. For liquid spills, use a dry clean white cloth or towell. Put it on the spill and apply pressure. The liquid will migrate from the carpet or rug onto the towel. Keep moving the towel so a dry area is over the spill and keep this up until no more liquid is transferred to the towel. For any solid particles, scrap them off with a spoon or dull object.
If a spot is still visible, we recommend starting with clean water first. If the water does not work, try either 1 teaspoon of a neutral detergent with 1/2 pint of lukewarm water (a non-alkaline detergent that does not contain bleach such as used for washing delicate fabrics) or 1/3 cup white vinegar to 2/3 cup of water. Using a spray bottle, sprits the spot with the cleaner but do not over wet the spot. Then blot it up as described above.