Know what the return policy and warranty are for any piece of furniture you are looking into buying. Even if you're totally in love with the piece, you must know what options you have if there are issues. If it's an "as is" purchase, do extra homework upfront to know that the piece is the right one for you. Don't buy major furniture on the spur of the moment. These are pieces that you'll be living with for a long time, so it's essential that you do your homework before purchasing.If the couch you want has a hardwood frame, then you need to ask whether it has been kiln-dried or not. If it has, then it will last much longer without warping, especially when it comes to changes in humidity. Turn any used furniture over to see what the bottom looks like. A piece can look amazing right side up, but when you turn it over it can have all sorts of issues, including rot, mold, and even infestations.An "eyeballed" measurement won't cut it here. You need to be exact as even a few inches can be a big deal for how your home design will work out. You'll be a much more confident shopper when you know the exact dimensions that you need. A great tip for selecting furniture is to avoid purchasing things in pre-packaged sets. While you may think you are getting a great deal when buying a matching sofa, loveseat and chair, the overall effect in your final room will look rather bland and boring.Instead, try to buy individual pieces that look good when combined with your other items so as to create a unique decor that nobody else can replicate. When shopping at a thrift store, look at the bare bones of the furniture, not the upholstery. You may be able to find a beautiful sofa for pennies on the dollar if you are willing to reupholster the piece or have it professionally reupholstered. The money saved on the piece will generally cover any upholstery job.