Haha so... this did take a little longer than 1 minute to declutter in real time, but in total it only took 15 minutes. So if you set a timer for 15 minutes, take everything out... you could have a decluttered, cleaned and organised cupboard in 15 minutes too! I did this with 15 minutes until my Mother-in-law was supposed to arrive for coffee & I got it done :-) Sometimes having only a short time is the easiest way to tackle decluttering and Spring Cleaning because it keeps us so focused!
Let me know if you give it a try!