I actualy really enjoy making lists but i have found a couple short cuts. For starters i keep all my lists in one journal so when i write a new one if there was a unit i liked i can just look back and copy paste it into the new list skiping all the math and looking up all the points cost. Also most armys rely on a couple core units so usualyi take my troops and must have support units lay them all out and see what points i have left. Both of those things can really cut down on the time required to write up these lists