Oldmill, for daily use you're probably just going to do the quick fold. The Swift is not very small in this configuration, as folding bikes go. In fact, I think the 26"-wheeled Montagues are about the same size folded. As for bringing it on a train, I do bring mine on our light rail trains, with the bike quick-folded, and the handlebar removed and strapped to the top tube. A bit of a pain, but takes only a minute or so. But I would not bring it on a really crowded train, unlike a Brompton for example. And I would never take it on board a bus.