who_else ,
no I don' t leave it up overnight , I' m ashamed to admit it but my state has thieves too . [:@] I set up fresh each time , that was one of the larger reasons I went to a pop up blind , portability . I can find a promising spot and be ready to rock in 5 minutes . I' m always careful to inspect the background so the blind won' t stand out from it .

No , the deer don' t smell it since I air it out frequently and spray it with cover scent like Fresh Earth or acorns .