An easier option is to have your items delivered to a local pickup location

Amazon offers it https://www.amazon.com/b/ref=amb_link_366591722_2?_encoding=... as well as having other pickup options in the UK (though I see in the US, there are not as many parcel dropoff services! is this an area for growth?)

Another UK example is Argos which has some partnership with eBay where you can have some purchases delivered to a local branch.

Most bricks and mortar stores will ship for free to your local store for pickup.