I recently sold a few of my eyepieces since they weren't getting used, so I"ve slimmed down my collection:

Orion Stratus 30mm (2")
Vixen lanthanum super wide 17mm (2")
Orion ED-2 25mm and 9.5mm
Orion lanthanum 7.5mm
Orion optilux 2X barlow
Moon filter

I use the 30mm and 17mm the most. I should have kept the Sirius eyepeices that shipped with my XT10, they'd be great 'kid' eyepeices.