In the UK, an increase in the cost of postage gets advertised several weeks/months in advance of the Price Change. First and second class stamps are designated as such, ie the monetary cost is not printed on the stamp. Next time a price change is advertised, buy stamps in bulk before the price change and save handsomely.

The recent increase in first class postage was 2p per stamp. A 1000 pound purchase of stamps would give you a healthy 20 pound return on your investment. Keep them beyond the next increase and the return will be even higher.

Clever, huh?

Now I wonder how long it would take for you to use/sell a 1000 pounds worth of stamps? Mmm... quite a while, I should think. Let me check with my colleague who told me about this scheme, having recently done it himself.