On the send aid page there is a extra toggle called 'Vault' every player can aid in to it but only the leader and 'vault manager' can extract stuff.

In the vault money and resources can not be opt and it does not decay but sent in stuff can not be extracted for 24 h giving you a +5-/ -9% interest in those 24h. interest rates can fluctuate from positive to negative due to inflation.

The inflation will be determined by the amount of savings of the fam compared to the savings of the galaxy and the nw/sise ranking of the family, a big fam will need to invest a lot more into the Vault to get better interest rates than a smaller fam.

the family bank has long been a tool for the most active fam to make the most of the round. this tool gives the game a new strategie line for all you eco nerds and a safer savings way that does not favor the  bigger fams.

we can of course make a op for competing with a large vault or seeing it.. whatever those ideas i have not thought up jet.. but what do you all think..??

* vault manager must of course be a new leader tag