In setting up a paper version of the GTD system, should your personal documents be integrated into the Reference folders or be kept separate? I define personal documents as items filed under: Automotive (e.g. service records, BMV, etc.); Financial (e.g. Paid in Full statements); Health (e.g. EOB); Household (e.g. lawn service agreements); Personal (e.g. professional memberships); Taxes; etc.. In my mind these documents are more store and save. Sometime I have to go back and reference them, but they do not have an inherent future action associated with them. Thank you in advance for your insight.