Perhaps you are actually speeding through your list, completing your tasks in less than the time you allocated yourself.
If that doesn’t sound like your experience there are several approaches you might take to get more done.
How about doing the grimmest item first (I think the approach is inspired by Brian Tracy’s Eat That Frog principle)?
Alternatively it is tempting to focus on the essential items only.
You might even have thought the easiest motivator is to tell your partner, or best friend that you aim to do X task by Y date. That pretty much ties your hands.
I’ve found a short TED presentation by Derek Sivers in which he offers his opinion on why that last solution may not actually help. He also suggests how you might want to tackle more goals, successfully.
Good luck whichever route you choose. Now, which vegetable goes better with an amphibian main course, rice or potatoes?