What people often miss
Hidden costs in Ripley usually start with missing details. The classic examples are a longer route from the van, a late key release, extra stair runs or a building where the crew has to wait for someone to open the next access point.
On a man and van job, that extra handling time is usually the thing that changes the final total.
How overruns build on smaller moves
A compact flat move can still run over if the van stops farther away than expected or if larger items need more turning room than the hallway allows. In Ripley, hilly streets, older terraces and town-centre loading that changes quickly through the day make that especially important because delay compounds once loading rhythm is broken.
Good notes up front are the simplest way to stop a manageable move becoming a stop-start one.