Even when you get to a point where you're no longer fretting over every dollar, you might still hesitate to spend money when you could've otherwise saved.

In season 15 of the hit entrepreneurial show "Shark Tank," three cofounders sought an investment in their burger vending machine business, RoboBurger.

Adidas was the brand that brought tracksuits to the forefront of the athletic wear industry in the 1960s, and they continue to produce high-quality, affordable, and trend-forward options. Pair Adidas’ ...