YouTheDesigner has a great article on 10 Easy ways to increase productivity that's definitely worth checking out if you find that there just aren't enough hours in the work day.

They include:

• Organize your files
• Organize your email
• Organize your paperwork
• Clean your computer
• Clean your workspace
• Keep a to-do list
• Keep a note pad at all times
• Get on a good sleep schedule
• Master keyboard shortcuts
• Install browser add-ons

While I'm not sure how some of the items will increase productivity for myself, I do think that the writer makes a good argument for all of them.