Most clients are able to make decisions in a timely manner, but there will always be a client who does't make a decision before their proof gallery expires and ends up asking for extra time. If you find yourself in this situation, here are a few different ways you can approach it:
1. Set Ordering Deadline Expectations
If your photography agreement or contract did not state up front how long a gallery would be available, or a cost for extending gallery viewing and ordering beyond the contracted availability, you'll probably need to be gracious for the first extension or reopening of a gallery after it has expired. This is when, in writing or over email, you will need to communicate exactly how long the gallery will be available to make their decision, and the cost to extend that timeframe if they cannot place their order or make their decision in a timely manner.
2. Invite The Client To An Ordering Meeting
If the client is having a hard time making a decision, communicate that in order to view the images again, you will be happy to set up an in-person appointment, at which time you will be able to provide your expert opinion to make their ordering decision easier. If the client is unavailable to meet in person, you could also schedule this arrangement over Skype and use Screen Sharing. While the quality will not be as great for the client via screen sharing, you will be able to discern the better options and help make it less confusing for an indecisive client.
3. Request An Ordering Deposit
If you clearly outlined that a gallery would only be available until a specified date and a client has chosen not to make a decision during that time, an alternative form of an extension fee is a deposit toward their order, which can be collected before making the images available again and applied once an order is placed, to cover any costs you might be incurring for hosting their images in an online ordering cart.
Obviously, the goal is to have clients who are happy with your service and product, while still setting appropriate expectations so that you aren't draining your resources and ability to serve clients in a timely fashion. Do you have other ideas? What works for you? Share your thoughts in the comments!