For Act Like A Time Traveller Day i was thinking of being me from the near future, & caught in some explosion that sent me back in time. As the day progressed i would realize what happened, what day it was, and i would start searching for why and how. I think i should only go back maybe a month. And i need to find my past self inexplicably absent... Maybe i became my past self when we collided... (alternatively my twin sis could be me 4 the day & i could avoid her)
Costume would be basic - i was blasted back home, so i might have some bruises, but i could change clothes.
If i can't work that one out very well maybe i'll just do the utopian future thing... Time tourist in upper class steampunk garb...
They could both be cool if done right...