I'm telling half the people in my life I'll be on vacation and the other half, those who would know I couldn't possibly be on vacation (like the only people I travel with) that I've got the flu and am highly contagious and was advised to just sleep it off. That way the second half will give me enough time to not be found in time to stop me but not so long that a bad smells set in. And unless I'm wrong (I haven't search this site yet) but when you die your bowels empty too, adding to decaying smells.
My main concern though about making sure I'm found but NOT before I'm properly dead is frankly that if it goes too long my cat might start eating me! She will have soooo much water and food handy but it's still above my body creating a smell which is my second concern.