I can't believe how much most of you carry! That's mental! I suppose if you're oop North and you are 47 miles from the nearest house/road it's different, but I carry:
CO2 pump and 2 canisters
Multi tool with chain tool
Phone
and errr.... oh wait, that's it! No tube, as I'm on Stans, and can't be arsed with taking rim strips out, no tyre levers, it's easier to learn how to take tyres on/off!
On the road I take 2 tubes and a very small pump, do you not feel weighed down with all the crap you're carrying!?
No not really...
Most of it's not crap anyway;
I take:
Puncture repair kit x 2 (including tyre levers etc)
Tyre pump
Multi Tool
Hoodie rolled up inside my bag just in case
Lube
Drink
No first aid kit, not important to me.
iPod
Camera.
Weight for me is not an issue - the bike can weigh between 15-20kg, and it won't bother me one bit. The bag, around 3-4 maybe 5kg.