It would be nice to have an option sort of in-between the current "Save Me" and "Delete" options. I've been away for a while and now that I'm back I found that a) the number of words ready to study was overwhelming and b) many of the words are ones I know longer really care about practicing. I wanted to preserve my progress records so "Delete" wasn't suitable. I had added words from a lot of lists (some of which I had since stopped adding words from). The only way I could find to remove the words from my practice set was to remove the lists one by one. I had to guess at ones that were no longer active, occasionally switching over to practice mode to see what lists were still in use. It took about an hour and a half to clear out all the words I want to stop practicing. I know this isn't (and shouldn't be) a frequently used function, but when you need it, it would be really nice to have. It seems like it shouldn't be hard to implement since the ability to do it one list at a time is already there. Maybe under "Delete" there could be 2 options - both would clear all the words from your list. One would keep your progress records and the other would reset everything.