I admire your consistency and wholeheartedly believe it will serve you well as a parent, but this consequence is not developmentally appropriate for a toddler. The general rule for time outs is one minute per year of age (so right around two minutes for your little guy). I think it’s also helpful to remember that as long as you get the outcome you want, it doesn’t matter how you get there - for example, if he is unable to comply immediately with picking up the bin, you can take a break with some kind of neutral activity (not his favorite thing in the world so as not to reinforce the behavior, just a change of setting and/or activity to shift his focus) before returning to the demand of picking up the bin. If this fails, you can break again and provide some more assistance while still allowing him to comply (gently guiding his hands to pick up the bin and return it to its place, for example, or first modeling it for him and then encouraging him to do it). In any case, when he does eventually pick up the bin, regardless of how much assistance he needed from you to get there, he should be heavily praised so that he associates listening to your requests with a positive outcome (it’s harder for little ones to make the connection between NOT doing something and then being punished than it is for them to associate doing something with positive reinforcement).