Trinature has 20% off their laundry products (email says may finish earlier if products run out).
Example of discount: 10kg Laundry Powder in a Bucket is $146.76 delivered with a Trinature account - 37c per wash for a front end loader (usually $182.77/47c per wash delivered with a Trinature account).
If you're lucky enough to use low-cost products such as Coles Ultra Front, this still doesn't end up as cheap. But as someone who has to use hypoallergenic laundry products to avoid looking like Sebastian from the Little Mermaid, at 37c a wash, this ends up cheaper than the other hypoallergenic products I used that actually result in clean clothes. It seems to be a pretty good product - it's even cleaned my site clothes well. (And for us personally, it's only been 19c a wash for nappies, light washes, and the kids' school clothes as it's pretty strong so we only need 1/2 a scoop for those washes.)
Can't comment on the other laundry products, but their other products we use (disinfectant, descaler, dishwashing powder, rinse aid, and window spray) have been good, so I wouldn't think they'd be too rubbish.
$14/kg for a laundry powder? I'm paying $2-3 for 1kg of powder in Woolworths normally.