Need some help. I'll be travelling alone to visit my daughter who lives near Ely and can pick me up there. I will be arriving at Heathrow airport and not sure of the best way to do so. Also have read so many stories here about all the problems of train tickets and not being able to get them once I arrive. If traveling by bus might be better. Any help will be greatly appreciated. I'll have a suitcase and a carry-on bag as well as myself!