You should be able to set a delay between pressing the button and the shot being taken but I still think a remote is better because there might still be some oscillations going on even after a delay. The remotes are super cheap but at least that will allow you to get good shots while you're waiting for one to be delivered.
I found the IR remote to not be terribly useful for my purposes since I'm not in front of the camera body in range of the IR receiver so I pretty much only use the wired remote. It uses a standard 2.5 mm phone connector so I was able to buy an extension cable to make it more convenient to use.