Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
A bit of scratched up grayness. Always good.
Source Dmitry
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Seamless Olive Green Web Background Image
Source V. Hartikainen