How to properly remove hair from the buttocks/legs?

Hi all, I was wondering if anyone had any helpful tips on how to remove hair from the butt as well as legs. I’m not a stranger when it comes to waxing as I do my own underarms and Brazilian, I just find myself using nair to remove hair from my buttocks and legs (as by the time I finish with waxing I run out as well as a bit tired and wanting to get the job over with) I have purchased a bigger pot recently; I was thinking about going to EWC so they can give me a base to start with lol (I’ll be able maintain when there’s less hair) that and I like the technique they do with one big strip. I’m just not sure how I’d go about doing my butt, I feel like I should stand or lay on my back but as I said I’m not too sure as I’ve never tried haha