Guitar tuning

So I decided it was time to re-string the guitar and start playing again, well by playing I really mean strumming a few chords. I'm not to adept at the whole stringing process and it took me ages to get all the strings on. Later I discovered that my tuner had broken but I set out to get it vaguely in tune by ear. It takes a bit of practice but I'm not too bad at it. Apart from when I came to tune the high E string, for some reason I tuned it to the 7th fret of the B string instead of the 5th. Sounds a bit flat, tighten the string, play a note, still flat, tighten the string, play note, that's almost it, still a bit flat, another turn....ping the string broke and nearly took my eye out. Going to have to get some more strings now - grrr