Boundaries - what they are, why we need them, and how to set them

I'm just back from a proper "switch off your laptop and don't look at emails" kind of break feeling all kinds of refreshed. The kind of break that can be really really hard to get when you have your own business because we can often feel like we can't justify time off, we have to be planning or using our time well, financially it might be harder, or that we just love what we do enough that we're thinking about it all the time.