Think about how your neighbors are doing these very days. Your neighbors may be Pakistan, Bangladesh, Haiti, Mexico, Middle East, Africa, Central America, South America or any other country at war or in deep disaster and distress. Instead of planning a vacation in the Maldives, the Caribbean Sea, Bahamas or the Philippine island paradise, may be a few weeks or months of helping in such countries in deep distress is infinitely more rewarding, far more valuable and definitely more loving than to enjoy a holiday with Millions in deepest pain and suffering just around the corner on our very own planet.
Useful means helpful for the general public or for needy ones in times of disaster. Useful means of any real use to ease the life, to heal, to feed, to support the lives of hundreds of Millions affected by disaster, illness and war on this planet. Useful also means that all who could need your services or products also can afford your services or products you or your employer offers.