Spending money is a breeze for something you like, especially when it is seen as a reward for a hard day’s work or when you’re eyeing that sweet clearance sale. But let’s face it, our spaces tend to get crammed with stuff we rarely use, or worse, don’t need at all. Committing to a no-buy challenge could be a game-changer. Here’s the goal: Cut down on consumption, focus on sustainability and hopefully upgrade your quality of life. It’s all about ditching unnecessary buys for a self-determined stretch of time. The only catch is it has to be a realistic goal, says Philip Heldt, environmental expe…