I loved going back and reading every post; what great ideas! Many of the suggestions or ideas listed I already use so I won’t repeat here but I think that I have some new ones:
Inexpensive plastic place mats (found a new set of 4 pretty flowered ones at a yard sale for 50 cents) placed under my sewing machine and serger so they do not walk, and protect my dining room tabletop.
I have very small corks that I use instead of Pinmoors as pin point protectors, that are used as “plugs” for inserting into small holes by paint shops so that the holes do not clog up with paint when sprayed. (Sure eventually they will break down after some time of repeated use but they are cheap money for a whole bag of them, and they last a long time.)
I use a small Clorax disinfecting wipes container with hinged lid by my sewing machine and serger for threads and small fabric scraps.
Squares or circles of rubber shelf liner, to grip needle and pull through fabric.