In a secure location (the same place they took Cheney after 9/11).
But seriously, the UNC halves, Morgans, etc usually go in the hard plastic snap lock individual round holders, others go in the round/square tubes or cardboard 2X2's. Most of my 40% Halves and junk dimes and quarters, war nickels are in paper rolls. The really good stuff is in my safe deposit boxes (ie UNC rolls of Walkers, Kenns, Franklins, ASE's, silver wash quarters), the rest in lock boxes and safe(s).