So I've got one of these thingamabobjiggers in a carpeted room I use for an office, but it keeps migrating across the floor. It's got those spikes that are supposed to prevent this from happening but they don't work. Image: http://ecx.images-amazon.com/images/I/31NeTYFEDDL._SY300_.jpg
I've tried using those no slip mats for rugs, and even using gaff tape to tape the edges down. The damn thing just keeps walking. Any ideas?