I have very recently gotten in a false eyelash habit too (I just really love the way they look). I use Ardell lashes with Ardell glue and I've found it works well to just hold onto the tray to use as a form. Be VERY careful/gentle picking off the excess glue, I have accidentally pulled out the lashes doing that. I run mine under warm water and run both sides over the backs of my hands and GENTLY between my fingers, that seems good at getting the mascara off. Then while it's wet I lay it onto the form it came in and it seems to hold it's shape. I like the idea of soaking it in eye makeup remover a lot, I may have to try that.
I wear mine until they look like they need replacing, which is not that often. Is that unsanitary? I wash my hands before messing with them.