These stocks have incredible long-term potential if you can hold tight. It doesn't take a ton of money to start investing. True, the more you start with, the more you can gain. But don't let a lack of copious funds deter you; two of the most important keys to successful investing are consistency and time, so the sooner you begin, the better. If you have even $50 available for investment today, consider Carnival (CCL 0.67%), Toast (TOST -1.96%), and Revolve Group (RVLV -1.79%) -- three amazing stocks you can ...