Sewing requires some specialized tools, the biggest one being the sewing machine itself. If sewing is new to you, your inclination might be to get a sewing machine as cheaply and easily as possible. Purchasing tools within your budget is necessary, but getting the cheapest (or free-est) machine possible is usually not the best option.
If the sum total of your sewing tools includes a pair of scissors from the kitchen junk drawer, a rusty needle you keep around to dig out slivers, and a roll of duct tape... you have a little shopping to do. The quality and type of tools you use for home decor sewing can make the difference between a project that was fun to make and you're proud to display, and one you feel like hurling out the window.