actually, when i first start the game, i was so in to it i didn't bother to look at the names. and with my population rising really fast i had a harder time of keeping track of individual villagers. But when i get my first couple of twins and triplets i do like to change their names to twin 1 and twin 1, or triplet K or wat ever their original name started with as a first letter.
when i get villagers as twins, i rename them the same-like. like Tofo and Tofu. and Pana, Papana, and Papaya. but when i get single villagers, i rename them Fiji 1. and when another Fiji comes, i rename her Fiji II, Fiji III, Fiji IV, and so on. like Fiji V, Fiji VI, Fiji VII, Fiji VIII, Fiji IX, Fiji X, Fiji XI, Fiji XII, but when there are a dozen Fij's the next Fiji i will not rename her Fiji XII, but Fiji IIII. then Fiji IIV, Fiji I-V, since there is alreandy a Fiji Iv, so on.