The premise of this post is flawed because no one is guaranteed tomorrow.
On the topic of UK cheques, the assertion that they will disappear by 2018 is incorrect as this has been cancelled:
http://www.paymentscouncil.org.uk/media_centre/press_releases/-/page/1575/
The "post office" means different things in different countries. In the UK, the Post Office is not responsible for the delivery
of mail - that is handled by the recently-privatised Royal Mail.
One thing that is certain to disappear would be your savings. Inflation coupled with record low interest rates means that
not only is your money declining in value but this is not made up by interest earned. It is likely you are dipping into your
capital just to get by!
Another thing that has just about disappeared for the younger generation is any hope of ever owning their own home.
Average house prices in the UK are now £250,000 (US$ 417,343). Shortage of supply and a failure by government to
impose controls on inflation in this sector mean that only the sons and daughters of the rich will have this privilege.
An absence of effective control on immigration has aggravated this problem (anyone from the EU can come and live here
without permits or permission required.)
Long-term contracts are on the way out. Zero-hours contracts are increasingly the norm and, coupled with minimum wage
remuneration make for an impoverished workforce (another thing aggravated by migrant workers from less well-off EU states.)
If you live in the UK, democracy is on the way out. Increasingly laws are imposed by unelected foreign bureaucrats in Brussels!
(Personally, I hope to see this trend reversed after May 2014 when my party sweeps the board in the country in the elections!!!)
If you are a man, it is likely that your hair will fully or partially disappear in your lifetime.
If you are a man in your forties with a wife/partner of similar age, make the most of your lovemaking as, come the menopause,
that is another thing that will disappear for good!
Otherwise, aside from a lack of doughnuts, all is good.