FEGLI is almost invisible during your career. Then you near 65, and some coverage becomes free while other pieces get dramatically more expensive. Here's the one-time, permanent election to get right before you retire.
The FSPS is deliberately back-loaded — and the difference between leaving at year 15 and year 20 isn't five-twentieths of a pension, it's most of the pension. Here's what a voluntary early departure really forfeits: the 1.7% multiplier, the annuity supplement, and retiree FEHB — and how to run the break-even math against a private-sector offer.