@kbikeva, that is quite deliberate. For a lot of the Pointless Prizes, you have no chance of winning unless you play every day. So the person who isn’t in a position to do that–or who missed as few days for reasons such as illness or being in a place there are no bikes–may feel it’s not worth bothering. And Bicycle Bingo would be the same if I didn’t allow people to get items called on previous days. If I did that, missing one day would rule out your ever being able to get the horizontal, vertical, or diagonal row of which that square was a part.
I wanted a contest that would motivate people to go out more often even if they couldn’t go out every day. As it is, there are 75 objects, and only 25 of them will be on any one person’s card. So even a person who doesn’t ride every day will have a chance to win.