I was looking for train schedules and prices and trying out different connections. When I finally decided what I wanted the next day (purchasing a train ticket is definitely something you shouldn’t rush into; always sleep over it), I went back to the website and was amazed by a dropdown labelled “your recent searches” very conveniently listing the different connections  I had agonized over previously (from-to station, date and passengers) and now all I had to do was make one click instead of entering it all over again. Thumbs up for that. I would appreciate that on airline websites too (wistful).