So a few really smart CPF hackers discovered this CPF lifehack that you can read about here. Apparently, authorities will populate your CPF Retirement Account with your CPF Special Account first before drawing upon your CPF Ordinary Account. If you allow the default action to take place, then you can lose out on thousands every year because you can't boost your CPF-OA's 2.5% to 4%. So some guy suggested that you buy third party products with CPF-SA just before your CPF-RA is set up (at age 55) and then sell these securities off to return the money to your CPF-SA after your CPF-RA is set up. This ensures that the bulk of your CPF-OA will be pushed into your CPF-RA and the CPF-OA monies will work hard for you from age 55 to age 65. The difference in returns is non-trivial, suppose the Enhanced Retirement Sum when you retire is $280,000...