Too much salt in the soup?

Learn2.com offers tidbits of useful information called Learnlets. Some samples follow: To untangle a phone cord, disconnect the end plugged into the headset and reverse. To remedy salty soup, throw in pieces of peeled raw potato. Cook with the soup then toss out before eating. The potato absorbs much of the salt. To recycle slivers of soap, put them in a blender with enough water to produce liquid soap. To determine the correct serving size for spaghetti, have each diner grab pasta between a thumb and index finger. That amount is the average serving for someone that size. To find proper-fitting shoes, shop late in the day when feet have swollen.