Photo by Jess Bailey on Unsplash

How Do I Create a Christmas Present For You … That You Can’t Open Before Christmas Day?

So how might we a lock down a gift voucher for a given amount of time and make sure that someone is not able to open it until Christmas Day?

Well one way is to get others to do some work, that you know will be done within a certain amount of time. If I know it will take you one hour to cut the grass in your garden…