I think everyone can make 5 to 10 perc guaranteed easily.
Just stock up on household supplies. Spend 10 k at Costco, same stuff will be 11k in 2022.
Just make sure you use your garbage bags and toothpaste sparingly to maintain savings.
Problem is storage costs and holding costs. Do I really want to buy 2025s toilet paper this weekend? My return is lower if I have to wait 6 years to use that floss.
This also runs counter to my other investment strategy, the highest yielding trick ever…don’t spend money. I had an available bowl that was 10.29! Seemed high to me.