The more modern method is to file documents and legal papers in a vertical file, using document envelopes, as shown in Fig. 25.
A card index to the vertical file might be made to minimize the difficulties of the classed arrangement.
But the very next day it braces itself for a new effort and it is not many days before it stands upright in a bold, vertical file.
For the purchase accounts with firms and individuals, a vertical file is used.
When no voucher system is used, all invoices should be filed alphabetically in a vertical file.
For these reasons, the vertical file is found more satisfactory.
Fig. 32 shows an outside cabinet, card index, and vertical file units, which fit the openings in the cabinet.
Either a vertical file or a post binder may be used for this purpose.
A very satisfactory method of filing designs is to use a file constructed on the principle of the vertical file.
Without question, the most satisfactory method of filing is to use the vertical file, with a folder for each customer.