You probably don't even have to leave the house unless you're out... Just use table sugar. But you don't use the same amount.. Use the brewing calculator here to tell you how much.
Pardon the interruption Revvy but in that calculator it wants the temperature of the beer. I've seen this discussed and I'm never sure if it's the warmest the beer has been during fermentation or the present temp of the beer (cold crashed) or what temperature the beer spent the most time during fermentation.