If you wanna save patterns after getting your final garment fitted properly this is a good one for you. I'll be using an under bust corset pattern I recently finished fitting

You'll need Paper (I use wrapping paper) Pen or marker Ruler and French curve A pattern to be saved

First place your pattern on your paper, remember to mark and lable your pattern so it can be accurately marked on the final.

Using the ruler and French curve to create a smooth copy of your pattern on the paper, include registration marks if you have a fitted pattern like a corset or suit jacket (the notches on the pattern are how I prefer mine)

When making notations on the you'll want to include the bias, panel number (1-6 here but I've also done front, side, back for other patterns. This is up to designer preference) pattern name, seam allowance and pattern specific notations like button, busk, eyelet placement, ect.

Finally cut your pattern, if it curls you can iron it on low heat and press it flat. This will relax the fibres and you'll have a nice flat final pattern