Buying a sofa is one of the most important investments you're likely to make for your home. In the living room it's a piece of furniture where we lounge, read, eat and drink, entertain family and friends, watch TV and, even sleep, so it makes sense that we take the time to invest in one that's going to last for years to come, right? From taking measurements to choosing a good frame, these are 5 things you should consider before buying a new so