I bathe as normal, walk out to the front porch (open) and put on a military surplus chemical suit ($15 on e-bay), then put my camou over that. I get to the hunting site and rub dirt on my hands and gloves. Then shuffle my feet in the same dirt. Walk to the stand and shoot the deer of my choice. I have filled my tags every year I've hunted. But the choice is yours. If you feel scent killers are necessary use them. If you don't know, try the cheaper route and if it does not work for you, invest in the soap, gum, scent lok, etc. Good luck to all.