For those asking about the consequences of no deal Brexit, I've cut and paste a short clear summary from an Evening Standard article below. For the average person, shortages of foods and medicine are very likely.
Basically what Theresa May has negotiated is a shit version of what the UK currently has now as a member of the EU. It is the best that could be hoped for given the Good Friday Agreement (and the EU) say there can be no border in Northern Ireland.
"What effect would a no-deal Brexit have on Britain?
EU nationals living in the UK and UK citizens living in the EU could see their residency rights disappear overnight and become subject to domestic immigration rules.
A no deal Brexit threatens to put pressure the Good Friday agreement, as the EU would want Ireland to impose customs and other checks on its border with Northern Ireland which neither want to do.
Tariffs would be imposed on goods that the UK sends to the EU and the same for goods that the EU sends to the UK. Tariffs on agricultural products could be as high as 60 percent.
Britain would also exit the single market for goods and agriculture which could result in red tape for businesses.
Customs checks at ports would affect the supply of food and goods and there are fears of long queues at borders and disruption to air travel.
Bank of England governor Mark Carney warned that house prices could plummet by a third over three years and that homeowners could be left with negative equity and spiralling mortgage rates.
UK Driving licences may not work abroad, there is no guarantee that there would be free data roaming in Europe and British passport holders could run into difficulty."