Those annoying indentations that are left in the carpet after you've moved the furniture can be removed quickly and easily. Place an ice cube in each indentation and let it melt a bit. When the indentation is moist, remove the ice cube and "plump" up the carpet with a widetooth comb.
Another way to remove them is to place a small towel over the indent and iron the area with a hot iron. Be sure to keep the iron moving so that the area does not get too hot.