CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Wise Registry Cleaner - Registry Cleaner and Optimizer.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.