Reports suggest that investors can build lasting wealth by investing in certain vanguard etfs with relatively small amounts of money, such as $100. The number of recommended etfs varies, with some outlets suggesting 2, 3, or 4 options, and some specifying vanguard or s&p 500 etfs. The investment strategy is often framed as a long-term approach, with some outlets advising investors to hold the etfs forever or for an extended period, such as a decade.