I used to believe tomorrow was Friday. No matter what day of the week it was. I once overheard someone say tomorrow is Friday so I thought tomorrow=Friday.
A childhood belief about general

others believed things like this
- I thought that "tomorrow" was one of the days of the week— Frank
- i used to believe that every friday night Freddy Kruger was under my bed and he was going to kill me— c
- I used to believe that, no matter what language other people spoke, that everyone thought in EnglishAnon
- I always thought that after 1999 it would be 1990 again, but with different months and days of the week
— optional - I thought the guy who got shot at the beginning of Gunsmoke was replaced every week by a live guy.— Monica
- i use to belive that mum could vac up my toy no matter how big or small— beach bum