The wine bottle etching post is genuinely useful — it explains that etching cream eats the surface rather than cutting it, and that stencil contact is what determines whether you get clean lines or blobs. I've noticed the same principle applies to professional glass work, where surface preparation and masking decide the finish quality. If you need a glass door company near me rather than a craft supplier, ask about edge work and hardware separately. It's also worth keeping any etched glass you already own rather than replacing it during a renovation.