Long-term investors know that buying and holding the right stocks is a fantastic way to build wealth. But dividend investors have to be even more strategic with their stock picking because they're looking for companies that will stand the test of time and pay handsome dividends as well.If you're in the market for some high-yield stocks that you can hold forever, then you may want to consider Procter & Gamble (NYSE: PG), Broadcom (NASDAQ: AVGO), and 3M (NYSE: MMM).