New transport combination arrangement (is a better word to use)

Today I've changed the my (is a better word to use) combination arrangement of public transport to come back from work. Usually, in the underground of Madrid (Metro), I take the Line Ten from "Alonso Martinez" to "Príncipe Pío". (it would be better to make this 2 sentences rather than 1 long sentence) However today a (I think it's better to say 'my partner' or 'one of my partners') my partner said to me that it's possible don't to not take the Line Ten and go straight from the office to Principe Pío, just tanken take a little line called "Opera". Today I tried this combination and tomorrow at morning I'll try to go to job work again and I'll compare what which of both options is faster. 

I'll tell you!

Regards.