How often should I check my balance?

Alpine Capital Bank 8 Bank 1st 2 CIERA Bank 2 Citizens Savings Bank 3 Commerce Bank & Trust 4 COMMERCEONE Bank 6 First Community Bank of Moultrie County 8 First National Bank of Absecon 3 First National Bank of Wauchula 3 First State Bank of Blakely 9 First State Bank of Brownsboro 9 Gainey Business Bank 3 Goodfield State Bank 10 Greenleaf Bank 17 HABIB AMER Bank 19 LEGENDS Bank 11 LIBERTYVILLE B&TC National Association 1 PRIMEBANK 13 Security First Bank of North Dakota 4 STATE Bank OF INDIA CA 30