What we did more, other than sharepoint branding & small customization
(1) ( 1) Build using feature
(2) (2) Fire feature activation events & add tracking
(3) (3) Configure RMS (Rights Management Server)
(4) (4) Change whole master pages using features & SPD (Sharepoint Designer)
(5) (5) Add Ajax enable webparts into sharepoint sites
(6) (6) Active directory users migration using SSP
We did workflows other than simple approval workflows
(1) (1) Dynamic workflows (No of levels)
(2) (2) Dynamic approvers (different approvers)
(3) (3) Configure SSL
(4) (4) Reports generations using SSRS
(5) (5)Creating Collect feedback, Collect signature workflows
(6) (6) InfoPath forms integration using X-Path to workflows