Advice for conserving

Howdy Ents,

I've been recently rolling a lot since im going through busy period im my life where there is not much chill, but I'd still like to get a lil'schwifty. Problem is that im using fuck tons of ganj for my cones/blunts/etc. So my question is, what is the perfect amount for one 164 pound human to roll and smoke without having unnecessary waste? .7? .5? Also any other tips to stretch my good just a little bit further

Thanks ✌