Pressure-sensitive tablets are often ideal when you're editing photographs in Photoshop. If your edits are confined to global adjustments that can be easily applied using a slider, a tablet isn't so necessary. But if you perform localized edits -- dust removal or cloning; masking of tone or color adjustments; or any type of dodge or burn effects -- then a tablet can greatly ease your post-production life. This video using a wireless Wacom Intuos4 demonstrates when and why pressure-sensitive tablets rock.