A stocktake of income streams …

At age 55, excess funds in CPF after deducting for CPF-RA (to fund CPF-Life)
From age 62, Supplementary Retirement Scheme
From age 65, CPF Life

And throughout, complemented by passive income streams from …

Savings accounts – interests (<0.5%)
Money market funds – interests (0.5-2%)
Savings account with special/high yield – interests (1.5-2.5%)
Shares – dividends (3-4%)
Preference Shares – dividends (4-6%)
REITs – dividends (5-7%)
Bonds – coupons (4-6%)
P2P Loans – interests (12-25%; effective interest is lower due to defaults)
Blogging income – click-ads (pathetic)

Additional sources with constraints …

CPF-OA – interests (2.5-3.5%; subject to policy changes)
CPF-SA/RA/MA – interests (4-5%; subject to policy changes) …