People report craft foam sheets warping when left near heat, a complaint that matters most for bench crafters who store stock near lamps, windows, or warm cabinets. The risk is a workflow problem, not just a cosmetic one, because warped sheets cut unevenly, stack poorly, and add flattening time before every project.
People report craft foam sheets shedding fibers and crumbs into workbench corners, and the complaint matters most on benches that hold small parts, paint, and tools between sessions. The risk sits in cleanup time, edge quality, and storage, not in the first cut alone.
Repeated buyer complaints tie fabric softener to pilling on sewing-project fabrics.
Reports that sewing machine lubricant leaves parts sticky point to the wrong oil, too much oil, or a machine that needed cleaning before re-lubrication. Buyers report the problem most often after a top-off on old residue, a heavy application near the thread path, or the use of a general-purpose lubricant that leaves a tacky film.