Never really though about bringing my DSLR's... I just use my IPhone.
Although, I am a Nikon shooter with crop and FF bodies with fast glass. I might have to bring something next time out. NOW, to find somewhere to go...
I've lightened the load considerably. I used to take my Nikon and all the heavy glass, but now they sit inside a Pelican case in the closet the majority of the time. For the past year, I've shot over 90% with my Olympus E-P3. The small size and low weight also makes flying and traveling with just a carry-on (backpack) so much more enjoyable. And because the Olympus E-P3 is so light, it's almost always hanging around my neck or shoulder ready for those grab shots.
Canon 5D MkII and 7D, various EOS lenses but usually 16-35mm f2.8 and 50mm f2.5 macro and 100mm f2.8 macro; other common ones include the 85mm f1.8, 45mm f2.8 tilt-shift, 200mm f2.8, 2x converter, 70-300mm. Variable ND filters.
Sony PMW-EX1.
Various tripods (Sachtler, Manfrotto, SLIK), heads, sliders, etc. as determined by the shoot and location. Almost always carry and use my SmallHD DP6 monitor anymore if doing video.
Way too damn many batteries.
