Very grateful this board was created today as I have to update my will.
As it stands, DH will get the lot if I go before him. If be goes before me, or we go together, my (also childfree) brother will get everything. If God forbid they both go before me I'll likely leave it all the charity.
I also want to leave around 10% of my (measley) estate to my best friend, just to give her tiny nest egg.