Originally Posted by Mr Jerk
I once hered a story about titanium cage bolts making the bike feel lighter, than regular steel bolts. Is that true?
(the cage that holds the water bottle)

If you pick your nose before you leave you can save 2 grams too.
And if you have a cold, each pre-ride sneeze can save you up to a gram in unsuspended, non-rotational phlegm weight.