Welcome back home. Looks like we will be having a white Christmas....
Re the article.
During WW2, while most things in the UK were going down the tube, second hand stores were doing a booming, and unrationed, business. I think the same thing will happen in the US when TSHTF. There are so many people with excess clothing, both cheap and well-made types, that I don't really foresee needing to do a lot of sewing "from scratch."
Patching, general repairs and alterations, otoh, will be very important. These are entirely different skills, and in many ways, much easier to do. I recently found some excellent beginner sewing books for sale at our library book sale. Paid 50 cents each and bought all they had. For fancy hand-sewing (decorative knots and stitching, get books on needle-point, embroidery, petit-point, cross-stitch, etc. There are many magazines and blogs available, too.)
For those folks who are sewing shy, just learning how to hem, put in a fold at a waistband, or put on buttons and snaps, are very good places to start. Actually, just learning how to thread a needle is a good first step. In fact, realizing that you need to stockpile sewing supplies (called notions) and putting together a sewing kit might be an "adjustment reaction" that a lot of people need to go thru.
Suggested items for a hand-sewing kit:
Needles in a variety of sizes, including self-threading ones if you can find them.
Cotton or cotton/polyester thread in different colors, but esp. black, white, brown(s), blue(s), red and green. Pure cotton thread sometimes shrinks in hot water when you wash clothing, so I try to go with a combination-type.
Very fine fishing line (use for hemming or repairing heavy duty clothing)
Waxed dental floss (excellent for sewing on buttons)
Straight fabric shears and pinking shears (these are the ones that have the sawtoothed edge and are used for cutting cloth so that it doesn't unravel)
Pin cushion (I use a bar of soap which helps to keep the pins and needles slick)
Straight pins (the larger the head the better) and safety pins, several sizes, including diaper pins
Ruler (12 and 36 inches)
Measuring tape (not metal ones like those used for carpentry. Sewing tapes are made out of soft cloth or other bendable material so you can measure around waists, etc.)
Wooden darning egg (I was taught to darn using an old lightbulb. Cheaper, but a bit more difficult to handle)
Marking chalk or transfer paper (to transfer pattern lines onto cloth. We used to use true carbon paper, but there are probably other products available now)
Marking roller (a pizza cutter with a light hand will do in a pinch. You have to be careful not to cut through the pattern OR the material.)
Sewing hoop (used primarily for fine hand work like cross-stitch, appliques, needle point, etc., but also very useful for small repairs where it helps to stretch out or stabilize the material)
You can also add various standard patterns, extra zippers, extra buttons. I keep a button jar and cut all the buttons off any shirts that I am recycling into rags or other projects.
If you will be using a sewing machine:
You will need much more thread and BOBBINS, which are parts of the machine that enable simultaneous stitching on both sides of the fabric. Usually, you fill the bobbin with the same thread you use for the top stitch, but you don't have to. Some projects intentionally use two colors for contrast.
If you are really concerned about having to live off-grid, you might want to start looking for a "treadle" sewing machine, which uses foot-power, not electricity. They are still available, and though might require some repairs, are often comparatively inexpensive.
Best Yuletide Greetings to you and yours,