My schoolbag was an attempt to make an unpredictable day survivable. I often missed spoken instructions and did not trust myself to improvise when something went wrong. Carrying whatever I might need seemed safer than discovering a missing item in front of an impatient teacher.
The difficulty was deciding where preparation should stop. A possible use was enough to earn something a place in the bag, even when the chance of needing it was remote.
What my “tortoise shell” carried
In primary school, I checked the timetable and my diary, then packed for the next day’s lessons. Alongside books and stationery came several small rolls of toilet paper for sneezing, a larger backup roll, a hot-water flask, an umbrella and prescribed medicine when I was ill.
In secondary school, the collection grew: spare paper, a hole puncher, calculator, folding fan, spare glasses, rubber bands, tape, scissors, plastic bags, a torch, a compass and binoculars. I also carried books to read and, when I began travelling to repair computers, a public-transport guide.
By polytechnic, I had added items such as a measuring tape, tools and computer diskettes. I put things into boxes to make packing manageable. My classmates called the bag my “tortoise shell”.
There was a reason behind each addition. Spare glasses could replace a broken pair. A guide could help me find my way. But a collection of individually defensible items can still become a burdensome whole.
Fix missing information before adding equipment
One improvement was to write instructions down as soon as I heard them and check the list with selected classmates after the lesson. That resolved many of the problems caused by missing what the teacher had said.
A reliable instruction could replace several speculative preparations. Knowing which materials were required was more useful than carrying everything associated with the subject.
For a school day, I would keep one place for the timetable, changes and things to bring. A message left in a second notebook is easy to miss. When the spoken instruction is unclear, ask for the exact item and date rather than merely asking someone to repeat a long explanation.
Equipment solves an equipment shortage. It cannot reliably compensate for not knowing what the task is.
Separate essentials from possibilities
I would divide preparation into what the day normally requires, a small backup for likely disruptions, and a response for the things I cannot personally cover.
The ordinary kit should match the actual day. The backup should address a recognisable failure: a pen stops working, glasses break, rain starts, or the planned route is unavailable. A response might be knowing whom to approach, where a replacement is available or how to get home.
That is different from giving every imaginable disaster its own object. A spare pen and an instrument carried for an unlikely investigation do not have equal claims on limited space.
Consequences matter as well as frequency. Something needed for an infrequent but serious health problem may be essential. Its preparation should follow the person’s actual care needs, not be removed merely because it is rarely used. For less serious problems, borrowing, replacing or postponing may be acceptable.
Count the cost of the backup
A backup has a cost even when it is never used: weight, packing time, clutter, maintenance and the effort of finding the thing I actually need. Carrying more can create the very delay or confusion I was trying to prevent.
Before adding something, ask what particular problem it covers, whether I could use it in that situation, and whether a lighter response already exists. Two objects that solve the same minor problem may not both earn their place.
When I entered National Service, I revised my pack again, removing items that were unnecessary or forbidden. The setting had changed, so the old kit was no longer automatically suitable. A personal survival system has to work within the place where it will be used.
Before visiting a court or another security-sensitive venue, empty and repack the bag for that visit rather than automatically taking the usual kit. I once left screwdrivers in my computer repair kit, was held back for questioning and missed the court appearance of an autistic person I had intended to attend. An ordinary backup prevented me from doing the very thing I came for.
Check the venue’s current rules and carry the minimum appropriate for the visit: necessary documents and support items, not unrelated tools. Essential medication, communication aids and other genuinely necessary items need suitable arrangements, not automatic removal. Singapore’s guide to attending court explains mandatory security screening and a non-exhaustive list of prohibited items. Allow time for screening and clarify uncertain items beforehand. Preparation includes knowing what not to carry.
Prepare a response, not a perfect prediction
I used to treat a timetable as though the future had already been decided. A change then seemed to destroy the preparation I had done.
A contingency plan does not need to predict every variation. It can specify what to do when the normal arrangement fails. For example: if the usual room is locked, go to the agreed office and ask; if the bus route changes, use the identified alternative or contact the person expecting me.
Agree and practise the fallback with the relevant people. I need a first action that remains usable while I work out what happened.
A stop rule matters too. Some situations call for leaving and getting help, not improvising with the contents of my bag. Being prepared includes recognising what I cannot safely handle alone.
Review the kit against real days
Rather than rebuild the whole plan every morning, I would use a stable everyday kit and change it for specific activities. After a difficult day, identify what was actually missing. After a period of ordinary days, check what is being carried without a useful reason.
This gives preparation an evidence base and an end point. Once the required items, worthwhile backups and help route are ready, packing is finished. Pragmatic Planning develops the wider question of testing a plan; here the aim is narrower: leave home equipped for the day without trying to carry the whole future.