Opening lines on the train/public transport...

I take the train to and from work everyday. Here and there I end up next to a cute girl that I'd like to talk to. But the only ice breakers I can think of are "going to work?" or "headed home?" and I'm thinking that neither is really very good (especially since "heading home?" might come off as very creepy).

So any tips on ice breakers? I know making an observation/compliment may be a good way to go, but sometimes there's just very little to comment on. I'd LOVE a generic line I could use on any girl, but is that possible?
Opening lines on the train/public transport...
Post Opinion