Loose weight on your wheels,tyres and rims are the best place to start.
Brakes are one thing i would leave on. if your going anywhere near roads then the ability to take your hands off the bars to point where you would like to go is a good idea. Nevermind the ability to stop quickly when a numpty in a Van pulls out on you!!
I agree ...
I found recently by changing just the inner tubes,, I saved 240grams, and thats not just static weight , its the most important 'rotational' weight...
Bolts/seatposts/stems/tyres are a really good place to loose loads of weight... but I would start at the wheel end, as this will make the biggest difference..
Just my 2pennys worth...