While by no means exhaustive, this is a list of sewing and pattern making supplies you should have, preferably before you start your project.
*bobbins (the right type for your machine, as there are at least 3 types)
*presser feet for your machine (usually they come with the standard sewing one, the zipper one, and the buttonhole one…these are pretty much all you need)
*thread (not the super cheap 3/$1 spools)–the cheaper the thread, the fuzzier it is–the fuzz can mess up the tension on your machine.
*sewing machine needles in at least sizes 10/70 (for light to medium fabrics) and 12/80 (for medium fabrics) and labeled “universal.” Ball point needles are for knits that aren’t super stretchy and stretch needles are for super stretchy knits.
*various small sizes of screwdrivers
*hand sewing needles–look for sharps…the other ones are labeled embroidery or quilting or some other thing.
*hand sewing needle threader
*fabric scissors, better quality, don’t let anyone use them for anything but fabric…longer, heavier ones make cutting the fabric easier, as the weight of the scissor helps you cut
*thread snips AKA thread nippers
*pins (if you’re going to plan to use mostly thicker fabrics, like denim or coat fabrics, you can use pretty much any thickness of pin. If you’re going to use finer fabrics, you may want to get a box of pins labeled super fine. You will be able to see the difference in the thickness of the wire.)
*seam gauge or measuring gauge
*lights and lamps, more than you think you need in your sewing area
*ironing board or at least a table where you can fold a towel and press on that
*table long enough to cut out the longest piece of whatever you’re making (a cutting table is preferred, but if your dining room table is fairly long, use that instead of the floor)
*things like buttons, zippers, elastic, snaps, hooks and eyes; ribbon or other trim; bias tape, etc., depending on what your project is.
*18” C-Thru ruler
*marking pencil, pen, or chalk, or Chakoner chalk wheel
*pattern weights (there are little ones in a 4 pack, but you can use whatever is heavy enough to hold down the pattern)
*paper scissors, can be cheaper than the fabric ones
*tissue paper for making any alterations to tissue patterns if you’re going to use them (standard commercial patterns are printed on tissue paper)
*optional, other paper for transferring an adjusted pattern that you want to keep and make more than one of, just not newsprint
*ball point pens in black (for all shell [the main, outer fabric] pieces), blue (for any contrasting shell pieces), green (for lining), and red (for interfacing)
*and you might want a pattern-making textbook
If you can’t find this stuff at the fabric store, you can check art supply stores and notions websites.