I have a shit ton of paperwork to deal with that I wouldn't otherwise have had to do, to establish my residency in the country where I've lived for 17 years. I have chronic illness that make it difficult to travel and I will have to make at least one 4-hour round trip to get my fingerprints taken.
When I eventually get it I will have to carry my residence permit as well as my passport, because I regularly visit a neighbouring country,
I will have to check how many days a year I spend in the neighbouring country having medical treatment, because I will only be able to spend 90 days a year in another Schengen country. It has not yet been confirmed whether day trips count as one of the 90 days, or only an overnight stay. If day trips count, I will probably have to stop some essential treatment as I won't have enough days available. There are no hospitals nearby in my own country offering the treatment.
Because of the above, I won't have any days left for holidays in Schengen countries.
My DH will not easily be able to accept work in the U.K. or other Schengen countries. It will not be worth my continuing to do limited work for U.K. clients.
If one of our elderly mothers falls ill, we will be limited as to how much time we can spend with them because of the 90 day rule and the risk to our residency if we spend too much time out of our home country.
I may have to pay roaming charges on my U.K. phone (which I use for work).
I may not be able to buy medication privately from the U.K.
I may have to pay 40% VAT plus customs charges on any goods purchased from the U.K., because many companies have not arranged to deduct VAT for EU customers, and we will have to pay local VAT on receipt of the goods.
We will join a campaign for the U.K. to rejoin the EU.
We will continue to be fed up that our lives have become moe complicated. To anyone who says we chose to move abroad and should accept the consequences, I say this: imagine you moved from London to Manchester, and after you moved, the government held a referendum in which it was decided that in future, Manchester would be part of the USA (and you didn't get a vote). Would you be happy about it?
So no, my life won't change much.