I do the 1st and 15th bc I can get paid from up to 3-4 days prior to the 1st or 15th depending on what the actual days are, and I have most bills on split pay bc personal preference and haven't run into too many issues, except for the 5 week months where I get paid on like the 13th and then don't get paid til the 31st and that sh*t sucks. So 1st and 15th