hi lisa, get yourself a mini laptop mouse as they are excellent for working on the move
I've got this model as I didnt want a cordless and have a usb block hung out of the back of my laptop. £15 on the site.
https://www.logitech.com/index.cfm/pr...CONTENTID=8142
I'm in early on a virgin train so usually get a table or decent seat. On the way home its a fifty-fifty whether the local (old) train has tables and if they are full or not so empire or 3D world magazine is a good fallback