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Best Practice

Fine tune with snap-to-grid off

This may seem like an obvious best practice, but it's surprising how often PowerPointers forget to give themselves this edge: when doing the final adjustments to the layout on a slide, remember to turn the snap-to-grid feature off.

Nudging elements so that they occupy "just the right spot" on the slide sometimes requires moving them just slightly, which is not possible if the snap-to-grid feature is on. This is particularly useful when making sure that label text is not too close/far from an object.