Re-use old projects assets.
Take a day to learn your IDE. If it doesn't provide tools like snipets, code auto-completion... consider getting a new one.
Put shortcuts to everything in key places so you can access things faster.
Get a second screen if that's not already the case.
Don't check your emails too often.
Try focusing on only one task at a time. If this is not possible, keep close track of what you're doing and don't get lost between 15 unrelated tasks.
Use paper. When I work I always have a printed version of my tasks on which I can take notes, cross off and so on. It's way faster than going on a different screen to read something or write something. At the end of the day I take 10 minutes to copy everything into the system. I realized it saved me some time every day.