I am really running out of hard drive space on my laptop which is my only machine so I am wondering if there is a way to bulk down-sample my entire runtime texture folder so all the textures for everything are below a certain maximum size.

This would help me render on my cheap old machine as well I imagine since I did better when Poser let me set a max texture size. If I sample down should the dimension of my largest renders? I never render over 1024 pixels on the long side given I render only for my own amusement now and I just have a 1280x800 laptop screen.

My only concern is props and scenery with many surfaces mapped to one large single image map but I figure I can re-install those if the problem only arises on occasion.