The article below appears in today's Guardian. I do think some of the wording is quite good in how it explains some of the changes due to leaving the EU.
My 'Brexit bonus' proved to be a customs duty bill from DHL
Whether picture frames or trainers, buyers are counting the cost of ordering from the EU
(I know that aspects of the article and, even more so, the comments, might be seen as political. This is absolutely not why I am posting - which is simply because it does explains several aspects quite well. Please avoid political comments.)