One of the ways I found to store my oil is in these little tins.
http://www.bottlesetc.com/industrial_containers/tins_-_two_piece_flat_drawn_
I think we have the 1/2 oz, and 1oz sized.
In my process, I run a little less than a cup worth of alcohol in a small pint sized jelly jar of trim, filter then put in a stainless steel measuring cup on my coffee warmer. I try to keep an eye on it, so I can catch it at the point where enough alcohol is mostly evaporated, but there is still enough to keep it liquid so I can pour it into the small tin I linked up above ^
Then I put my coffee warmer at a slight tilt, so the liquid will settle at one end of the tin as it evaps and purges completely. Then I just let the process finish in the storage tin, and when it's done, it's done and I can put the lid on. Once I get the oil spread around the tin (during use) to the point that it's hard to dab, I can just rewarm it at a tilt, and it will puddle back down to one side, and make it easy to dab again.
If I wait too long at the SS cup evap. stage, and it's no longer easy to pour, I just add a bit more alcohol, stir it up until it's all absorbed again, then transfer it to the tin, and finish the purge.
None of my Iso extract has been hard enough to handle. It's all be gooey, so this was my way around the collecting problems.