Personal preps
Curb your domestic expenditure, save what you can. If you have considerable savings, be aware of the deposit protection scheme limits and ensure you are not exposed through saving with different institutions in the same group.
Whatever your occupation or income level, make a plan for redundancy. Factor in future and permanent payments for private health care for you and your family
Prepare not to rely on your pension paying out quite what you expect or in the case of the state pension, when you expect it.
Educate yourself on what Brexit might mean for you. The information that should have been out there and promoted in the run up to June 2016 is out there now.
Nationally
The re negotiation of 120 regulatory trade contracts a week between now and end March 2019 for a start.
Finding somewhere else to build the M20 lorry park to cope with the backed-up freight lorries (now planning has been rejected)and build it.
Upgrade the computer system at hmcts that covers customs paperwork, to deal seamlessly with an absolutely massive increase in applications. Fund it. Fund a back up. Test both. Implement it. Fix all the bugs. Employ extra admin staff to work it.
Build infrastructure at all our ports to deal with customs inspections.
Recruit and Train thousands of customs inspectors
Recruit hundreds of experienced international trade negotiators.
Employ tens of thousands more civil servants to deal with the myriad of implications across government.
Fund the multi million pound agri enviro schemes which keeps near-subsistence farmers in business and whose work makes the beautiful countryside what it is.
Make available millions of pounds in legal aid so low income consumers can sue manufacturers for faulty products imported into the uk once all that nasty eu red tape ( which protects us from harm whether in foodstuffs, mechanical devices or pharmaceuticals) has been dispensed .
Or we could have not done this at all. If there is any way at all to row back from this monumental catastrophe I hope it is taken.