Click & Collect

What is Click & Collect?
How much does Click & Collect cost?
How do I place a Click & Collect order?
Which stores offer Click & Collect?
How long does shipping take?
How can I track my order?
How do I know my order is ready to collect?
What do I need to bring to store to collect my order?
How long are orders kept for collection in store?
Can I change the collection store for my order?
Can someone else collect my order on my behalf?
Where can I return my Click & Collect order?