I'm relatively new to designing on a grid and was wondering if some more senior designers could share how they go about creating column guides to keep a visual consistency in their InDesign docs.
Specifically, I'm working on a landscape-oriented letter sized page with 0.5 in margins. If the gutter size matches the margins, there isn't room on the page for a 12 column system, but the design needs to accommodate both three column layouts and 4 column layouts. Does anyone have some insight into the best system to use?