Longer exposures during day

A quick post , stuff u prob know , but a reminder ... A relative of mine asked me how to take longer exposure pics ( half a second to slightly longer ) in the day .

So here are a few useful tips :

a) Smallest aperture possible .
b) Lowest iso/ film sensitivity possible .
c) Neutral density (ND) filters .
d) Dont pick an extremely bright day , a cloudy one will be good .
e) Go somewhere where there is easily noticable motion blur , like a highway or beside running water which will still look blurred at slightly faster shutter speeds .