When players earn timed boosters or free game play for chocolate box, weekly contest, daily wins… it would be nice to be able to bank them. If a player is too busy to play more than one level at a time, but then they win their 6th day or weekly contest, they may not have a chance to capitalize from their rewards, because they have to go back to being productive. If there was a way players could come back to play without losing those rewards that would make the game more rewarding. Players earn those rewards, so they should have a choice when they want to use them.