If you have just worn out the toe especially on pointed toe shoes, then you may not need a replacement half sole. You can choose a basic toe repair.
If the heel is worn out too, choose the toe and heel repair and it will sustain the life of your shoes.
For a quick save why not have an additional brass toe saver added. Pointed shoes kick out at the front really quickly and this will help stop them wearing out and creating holes in the front of your upper. You will still need to keep an eye on them to prevent any long lasting damage from wear. It will always be ‘your favourite shoes’. Look after them and they will last you for many years to come.