Signs denoting post offices are usually bright yellow, as are post-boxes.
If you need to send a letter there are stamp vending machines and post-boxes outside all central post offices. Stamps can also be bought at many kiosks.

Parcels sent abroad must be inspected, so do not wrap and seal them beforehand. Brown paper, soft padded envelopes and cardboard boxes can be bought at the post offices themselves.

Many people pay their bills at post offices and banks so keep your eyes open for the fast moving line.