When I have a lot of tasks to finish, I like to start with the short and easy ones first.
That way, I can get them out of the way first. It also gives me a sense of accomplishment that I have completed tasks in my to-do list. There is this high when I cross them off the list.
Also, it serves such a good warm up to my brain and fingers. Getting my mind & soul ready for the complicated ones.
Bimbo