Enter all the good sarnie shops into the sat nav that you might forget where they were.
Cut furniture tabs into halves or quarters to save money.
Enter the customers names in to your fone that you would never go to again as: ''don't answer''

....including sales companies.
Keep toilet roll on the van for doing empty properties....especially if youv had a currie the nite b4. Also check the lecky meter has money in b4 you go if you have a portie.
Keep a condom on the van with the money you saved by cutting furniture tabs.