Hail Genghis.
All Club-operated aircraft at the Aero Club I operate from have a GO-BAG, kept in a special storage cupboard in Flight Briefing.
This contains all the compulsory documentation/ approvals /certificates and P.O.M for a particular aircraft.
The GO-BAG is always taken on land-away flights, along with the Tech.Log and a completed Weight and Balance Sheet for that leg, with further blanks contained as standard.The POM is required of course to source the W.and B. data.
Rgds,Sleeve.