Olympus 9mm f/8 ( not quite a fisheye, example shot :
http://kbeezie.deviantart.com/art/The-Gardens-Closing-465413252 )

Olympus 12mm f/2.0 (probably my favorite lens, especially for street as
it's 24mm equivalent, http://kbeezie.deviantart.com/art/Skywalk-575483194
)

Olympus 17mm f/2.8 (the kit lens I got with my E-P3, not used much since I
got the other lens,
http://kbeezie.deviantart.com/art/Guitar-Loving-with-Charie-Dany-285831552
)

Panasonic 20mm f/1.7 (the 'normal' range lens of 40mm equivalent, it has a
close focus distance,
http://kbeezie.deviantart.com/art/Sandy-on-the-Swing-554013828 )

Sigma 30mm f/2.8 (what I was using for the 'normal' range previously,
http://kbeezie.deviantart.com/art/Gon-Kirin-403522266 )

Olympus 45mm f/1.8 (fast little portrait/telephoto range lens, the
autofocus is snappy,
http://kbeezie.deviantart.com/art/Foggy-Walkway-in-Color-527583880 )

Pentax-M* 50mm f/1.4 (50+ year old manual focus lens I used for a while,
http://kbeezie.deviantart.com/art/Karl-Tired-Out-304573085 )

Sigma 60mm f/2.8 ( The lens I use the most for table-top studio shots of
the pens, quite sharp and inexpensive,
http://kbeezie.deviantart.com/art/Little-Musicians-Warm-403690570 )

Rokinon* 85mm f/1.4 (a telephoto; 170mm equiv with a fast aperture, manual
focus only, meant for pentax mount, but they make it for canon and nikon
too, http://kbeezie.deviantart.com/art/Being-Attentive-510319720 )

Tamron* SP 90mm f/2.8 1:1 (my 1:1 Lifesize macro lens, manual focus, with
an Adaptall-to-micro-4/3rd adapter, used alongside the sigma 60 when
shooting pens, but also great for macros in general,
http://kbeezie.deviantart.com/art/Thirsty-441086035)

Jupiter-11* 135mm f/4 (270mm equivalent, my longest lens, yet it is
smaller than my tamron, very sharp at f/4, but I can't focus on anything
closer than 15 feet, it's a leica thread mount lens, meant for old
rangefinders, but easily adapted onto the micro-4/3rd mount,
http://kbeezie.deviantart.com/art/The-Kitchen-from-Across-the-Grand-598693369
)

The 9mm, 12mm, 20mm and 45mm are usually in my grab-n-go bag, as all the
lens are very small, and all but the 9mm are fast and autofocus, will
sometimes pack the 135mm as it's not too large. The 60mm and 90mm are
mostly used for my tabletop studio for the pens and such, The 17mm, 30mm,
and 50mm don't see much use now days, and I am selling the 30mm. The Pentax
50mm would get more use if I still had my tilt adapter working (allows me
to mount a Pentax lens to the olympus and tilt it 8 degrees in any
direction giving me the ability to shoot stuff like this :
http://www.viewbug.com/photo/65140471 )