Before I launch my site and start booking paying clients for outdoor portrait shoots, I have a problem to fix. I've done 5 or 6 regular pro-bono shoots to grow my portfolio, familiarize myself with my lighting equipment, and just learn how to direct people while shooting portraits of them, etc. But ideally, I want to be able to provide a client with 10-20 proofs of shots that are worth editing and keeping, so they can go through them and have a wide selection to choose from if they end up ordering prints. So far, I've noticed that I sort of run out of ideas around 1 hour into the shoot. This generally leaves me with something more like 5 or 10 good images, where I need more. I have heard it's not uncommon for a shoot to last longer than 3 hours, which helps justify the price some photographers charge for a sitting. Is there something I'm missing, or should I just push it and try to fill it out to something more like 2 hours? Are there any tricks I can use to expand the length of the session?