Style 1
ID     Task      Progress
1       task1     0%
1       task1     33%
1       task 1    100%
2       task 2    17%
2       task 2    35%
.
.
.


Style2
ID    Task    Progress
1     task1    12%
2     task2     15%
3     task3    22%
.....
11    task1     25%
12    task2     31%
13    task3     42%
.........
21    task1     45%
22    task2      52%
23     task3     67%
.........

Two method of schedule,
two different orientation.
First one make sure you get your first priority done;
the second one make sure you don't feel boring.
I hope this helps.