I too exercise on a daily basis. In the pole above I voted for running. Though I hate running, as I ran enough in the Army...lol....Are you getting in shape for when SHTF well I am everyday I've been working out running lifting preparing myself are you doing the same?
+1I am a big fan of "functional" work outs, but I am not endorsing Crossfit or anything like that. I find the appeal of cave man training fun. Basically lifting heavy objects, not necessarily weights but irregular shape things you would find in nature, climbing rocks, jogging, sprinting, things that tax all your muscles groups at once basically.
For lifting I love doing barbell complexes, a sequence of interlacing lifts with light to medium weights. Like dead lift, romanian dead lift, standing rows, hang clean overhead press, into good mornings in sets of six without stopping.