I use equal house. The ascendant is placed on the first house and the same degrees and minutes are used for each house cusp. Each house is divided into 13 zones. I've been sharing a bit about zones in my Instagram, @KarmicAstrology.
It's pretty easy to do, but to make it even easier, I have a spreadsheet for you. Just pop in the degrees and minutes of the ascendant, and you've got it.
Once you download the zip file, double click it to unzip the files: spreadsheets in Excel & Numbers (Numbers comes free on a Mac) and a PDF.
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