Expense is a somewhat masochistic category that makes you want to cry and laugh at the same time. At its core, expense refers to anything that costs you money and depletes your funds faster than you can say "Netflix subscription." Of course, not all expenses are created equal, which is why we've rounded up the most popular expense trends to help you understand where your money is going (or being sucked into a black hole). Looking at the trends, it's clear that businesses are invested in minimizing expenses to maximize profits, whether through the subscription business model or cutting costs with zero marginal costs. Meanwhile, individuals are looking for ways to manage their expenses, as evidenced by the popularity of Truebill, Payhawk, and All-In-One Accounting. And let's not forget about the shady side of expenses, with trends like fund expenses and financial transactions making an appearance. All in all, if you want to stay ahead of the expense game, it pays to be informed about where your money is going and how to make it stretch further.