Oh my sister you must be drinking wimpy coffee. You need a thermonuclear cup. Believe me you'd better be within a quick sprint of the facilities if you drink the kind of java I'm talking about.
Seriously it will work if the caffiene content is high enough.
Well you could buy whole beans and grind them for 25-30 seconds which actually turns them into a fine powder. That makes for strong brewed coffee just by itself. Then when brewing add no more than 4oz of water for each TBS of your finely ground coffee. It'll be crazy strong so you'll want to add more cream and sugar than normal.
A grinder is as cheap as $12 so I'm not talking major investment here.