Yeah, I do. I use essential oils like tea tree because it’s vaguely antibacterial and lavender because it smells nice.
It’s fine for regular loads but I’ve been subjected to loads of bants from the football lads for saying i can’t effectively wash the kit for the squad just using them.
It’s way more economical though, I bought one £10 ish bag about 8 months ago and I’ve barely used any as you can reuse a handful for about 5 washes. Obviously extra costs are buying essential oils for scenting.