Anything you buy online these days is followed up a few days later by an email asking you to review the item and also the retailer. I usually delete these as I can't be bothered to write a comment on something that is often quite dull and straightforward. I'll give it some stars from 5 if they ask for that, but the comment is a bit too much. I have a Waitrose card which they obviously use to track my purchases, I have now just received an email asking me to review some avocados and an "Essential round lettuce" I can't even remember buying, maybe it started life as the few flaccid leaves that remained and were thrown in the bin earlier today. It was round and tasted of lettuce. This is getting a little OTT now.