what does mind your p’s and q’s mean
Mind your Ps and Qs Mind your Ps and Qs is an English language expression meaning "mind your manners", "mind your language", "be on your best behaviour" or similar.
P45 (tax) The "P" code refers to documents in the PAYE series, in the same way that self-assessment documents are prefixed "SA" (e.g., SA100 - Individual tax return) and Tax credits paperwork is prefixed "TC" (e.g., TC600 - Tax credits application).[citation needed]