Lanefan
Victoria Rules
Might not even need to.There are typically two types of gaming groups: those who simply treat everything you own as available, and those who make a distinction between what you have equipped and what you own but don't carry around with you all the time.
How to separate the two is something I am still not done with my own character sheets design.
Just mark with an asterisk anything you own that is not with you in the field (or, if using a printed sheet, print it in a different colour), then note somewhere on the sheet what the asterisk represents e.g. "* = in storage at home base" or "red = left for safekeeping at Apollo temple in Praetos".
I already do the different-colour trick for one of my characters, to distinguish what's in his Bag of Holding from what he's actually carrying outside the Bag.