My partner and I don't do this any more - especially now that we are married - but for the first couple years we lived together we split the grocery bill using a 1 to 0.77 ratio we derived from our bodyweights.
We just derived the ratio once and never updated it - neither of us were particularly invested in losing, gaining, or tracking our weight - so it seemed an OK proxy metric to handle the fact that we ate noticeably different amounts.
A few years later we've started to consider the fact that we might both be on the spectrum :)
We just derived the ratio once and never updated it - neither of us were particularly invested in losing, gaining, or tracking our weight - so it seemed an OK proxy metric to handle the fact that we ate noticeably different amounts.
A few years later we've started to consider the fact that we might both be on the spectrum :)