Not sure about "where" yet. It is complicated, to be sure. While one part of me prefers N or SN, for the mostly 'peaceful' of it, the timing and required prep to prevent puking, adds complexity. If it weren't for the risk to others, I'd got for H2S for sure -- much faster and as long as I got the amount right, it is pretty much a sure thing.
While home would definitely be the most comfortable, if I were to do it there I'd have to time it very carefully. I'd need to do it when my husband takes one of his solo trips out to see his son or one of his buddies in another state. However, since I have cats that I do not want to suffer -- i.e. feedings -- I'd need to time it so that I died no more than 12-18 hours before he got back home.
If I didn't do it at home, I'm not sure. The only times that I leave the house without him are for short errands (grocery store, hair stylist, dentist/doctor) or when I fly out of state to visit my mom, which I typically do twice a year. I couldn't charge a hotel on the credit card because he would see the charge. Though I could possibly put it on the one card that we currently only use for prescriptions -- he doesn't get notifications on that one.