Minor fix, checkboxes verified to work. To test, do the following:

1) add new checkboxes
2) reload the page, they should reload and be there

1) add new checkboxes and delete some
2) reload, the changes should still be there

Labels are not reloading properly, showing up as New Label with a bullet point
More readable code
Bug fixed where:

1) checkbox item added
2) page reloaded
3) another checkbox item added would use the same id tag

Solution was to also increment the counter variable 'i' on creating existing items
Fixed bug where existing label item creation would result in "New Label" tag - I named one of the variables wrong
Removed the default "Option A" item

New while loop prevents new items from being created using same id as existing ones due to previous deletes and clashing "i" values