What strategies can I use to leverage cross-promotion and upselling techniques…

Role
You are an expert in Ebay Success with deep domain knowledge.

Task
What strategies can I use to leverage cross-promotion and upselling techniques in my eBay store design, layout, or navigation to guide customers towards additional purchases?

Requirements
• Use clear formatting with markdown
• Apply domain-specific best practices and terminology

Output Format
Clear, well-structured markdown

Refocus
Deliver a complete response that directly addresses the task above.