get a road morph pump. Cartridges are expensive and you can only use them once. I watched my Dh go through 3 of them and then he didn't have one... what would you do if that was you on the road?

Road Morphs are easy enough for me (think puny and lazy) to pump 90 lbs of pressure into my tires, enough for anything i need to do. they are ingeniously made, whoever invented them thought of everything.

and when you can afford it, get a floor pump too, to leave in your garage.

if you carry spare tubes, you can hopefully not need a patch kit.