Finally, victory!
We started moving June 1, officially ended June 30, and I finally found the Black Widow that's been hiding in my sewing room since then. I knew there was one in here somewhere because I'd find those nasty sticky webs of theirs. I saw it last night, but it scooted away before I could get it. Vacuumed it up today. HAHAHAHA!!!! Take that, dreaded arachnid.