There's nothing wrong with such people, as I see it. BUT you have to make sure your charges cover their eccentricity.
Many times things like folding are done on-line with mailing, for example. Or boxing is not needed when mailing with trays, but IS needed when Billy and Bobbette show up to take the stuff home to get the kids to do it.
This can be dealt with by "loading forward" these eventualities: add the cost of boxing to the prior operation and deduct it from the next operation. This can make the next operation's price a bit more palatable and keeps you from losing your shirt if they want to be "frugal".
And THEN make sure they realize that if they take it away and return it for the later operations, the price will be higher than the quoted price: After all, you'll have to accept the stuff, make sure it's prepared properly, put things in sequence because little Charlie isn't good with numbers, etc.