The first step is using correctly sized ethernet cables. Dont use a 12 ft cable for a 3 ft run. There shouldnt be more than a foot of slack in general. You dont need to "tidy" excess you dont have.
Then, for when you do need to tidy cables, use velcro ties, not zip ties. Ideally, you still label all the runs, especially the long ones. Seems a bit redundant for 3ft, but its still helpful.

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