The flexibility of working from home is a knife that cuts both ways, especially if you're not careful and diligent with your time. While working from the comfort of your own home and away from pointless and draining conversations in the office, before you know it, you're taking calls in the early morning and late in the evening and working past your scheduled hours more and more often, blurring the line between your working and personal life. To make matters worse, on days when you're sick and…