Wha-ah
ooh-ah
wa-ah-ah la-la
ooh-ah
wa-ah
lalala.....ooh-ah!
That little kid singing. I have told new generations of this and they don't believe me that the sims kids used to sing. There are videos of the newspaper girl whistling, but not the kid singing.
I also remember accidentally producing a baby on the front lawn while a couple neighbors just casually flirted with each other. Such a shock and the drama that ensued was icing on the cake.
Fireworks... You could just place them anywhere. Note: do not place them on a covered balcony! You will face the reaper, he will save your husband who will then die again trying to stamp out the fire instead of calling the fire department.
Astrology: making a character chose their personality based on astrology. This made for some surprising results after placing a new family on a lot, including unexpected pairings and spontaneous cat fights.
There are just so many memories and much entertainment from this classic!