Get more foci, just don't use them all at the same time. You can bind a bunch of them (as many as your magic, I think), and then switch out which ones you have active (so instead of having Strength on, turn on Free-Fall 4 and jump off a five-story building before activating the Agility one for a speed boost on the getaway). Besides that, stock up on vehicles, instructors for later things, lifestyle, a better DocWagon account, stuff like that.