Collect all the components required.

Bend resistor, capacitor and diode leads to be about 0.1 inches long and at right-angles to the body.
(note holes in board are 0.1 inch pitch).

Extend the reach of components where necessary using wire links (22swg). Measure distance between leads and fatness of components.

Convert circuit diagram to stripboard layout with a minimum of cut tracks and wire links (22 swg).
 

The power supply should be joined to the two outermost tracks.

Keep inputs and outputs well away from each other.

Try to keep all components at right angles to the tracks.

Make provision to keep hot components clear of the board.

Join tracks in parallel to carry high currents.

Design it so that transistors fit three separate tracks.

Cut tracks before soldering to avoid the track cutter digging into solder joints and ripping them up.

Fit components so that they are flat on the board.

Spring component leads out slightly to stop them falling out during soldering.

Solder two diagonally opposite pins on I.C's and check the I.C's for flatness before soldering the rest of the pins.

Solder one transistor lead and check that the transistor is vertical before soldering the other two.

Cut off excess leads but do not cut the solder. IC pins do not require cutting.

Upon completion check for correct values, correct direction of diodes etc, no solder splashes, tracks cut correctly, wire links present etc.