Done Tasks should be sortable in alphabetic order too
To undo a done task is easier than write it down again and again - especially when shopping daily groseries. To sort the done tasks in alphabetic order (as ohne Van do it with normal tasks) - would help a lot.
Johannes Müller commented
That'd my top-wanted missing feature, exactly for the same reason. I have a "done" list over here with dozens of entries like "Milk", "Oat flakes" and "Bread", because it's simply too circumstantial to scan the unsorted list.