Not so subtle. These tileable wood patterns are very useful.
Source Elemis
You know you love wood patterns, so here’s one more.
Source Richard Tabor
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
Spice up your next school project with this icon background.
Source Swetha
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett