So glad you enjoyed your stay! Yes, in dry natural environments such as the Mojave Desert (where we are located), there are a 2-3 weeks in the summer where the extreme heat causes flies to gravitate towards the coolest spot, such as any air-conditioned building in the desert. Minimizing open doors is absolutely the key, however understand that it is a challenge with multiple people (and especially with pets) coming in and out during a guest's stay. Just reached out to you separately to see what was missing in the kitchen -- so sorry if something essential was missing, as that can be frustrating. We've filled the kitchen with basic cooking supplies per vacation rental checklists, however if we missed something, we will absolutely stock it! We love our desert farmhouse, and we want to make sure our guests feel the same way!