I don’t ever like recommending it, but do you have a test light?
Canadian Tire has cheap voltmeters for $10. I think they’re even available in Wal-Mart. You don’t need anything fancy. You can get test lights at both places for sure. If you must get a test light, try to get an LED test light and not one with the regular incandescent bulb. They’re a little pricier but they don’t pose the same strain on the electrical system from excessive current draw, and the explicit fire hazard from the bulb/sparking.