It is important to think about how you want to analyse and present your data ahead of time. A good example is ‘Age’.
Say you have birth dates or ages in a contact field. If you know that you want to present your survey results with a breakdown based on certain age categories, then it is much easier to set that up ahead of time. Create a hidden question with the age categories as answer choices and prefill them based on the respondents age. That way, you have a closed question, for which, you can easily make charts, filters and breakouts.
A little bit of work upfront will save tons of time when we you analyse the survey results.