When I am dead, I hope it is said;

Dude, just resuspend it in water! That's what I did when we got a serious ant problem in our apartment when we first moved in. I think I did a 5-10% w/v mix and watched them die. It was good times. I mean, Boric acid in water also can double as a cleaner (Borax) so you can always say you were cleaning your floor.