Keyboard Replacement (some models)
Hardware Diagnostic
Tune-Up
Malware Removal (yes, macs get infected too)
Software Installation and Configuration
Memory Upgrade
Mac OS X Installation / Upgrade
Magsafe DC Jack Repair
Preventative Maintenance
Battery Replacement
Backup Configuration
Hard Disk Drive Replacement
SSD Upgrade
Heatsink / Fan Replacement and Cleaning
Water Damage Repair (if possible)
Speakers Replacement (some models)
Trackpad Replacement (some models)