[waihtis]

> Interfacing with individual vendor and their bespoke system for each purchase gets cognitively exhausting quickly

If using a web shop is cognitively exhausting to you, there likely are bigger problems underneath.

[TeMPOraL]

A single one, no. Two dozen different ones - I can do it, but it gets so annoying that I'll happily pay premium to buy the same things on a single site.