Try Nobiax's textures. While they won't help you with clothing, they should help you a great deal with environment (walls, floors, trees, ground, etc).

http://nobiax.deviantart.com/gallery/?q=free+textures+pack&offset=0

Filter Forge is also on sale for 1 more day. Pro can be had for $79 (normally $399). https://filterforge.com/

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Daz, Blender, Affinity, Substance, Unity, Python, C#