Eco friendly recommendations

Before the hot water reaches the tap, I catch the cold water in an old milk container - usually about 2 litres. I use this for the dog's water bowl, the chooks or for watering seedlings. I don't rinse after washing up - even if I should

Always catch the run off in a 6pt old  milk container, like you Veggie,  the water is used to rinse down the sink, watering plants, washing veg, etc.  There is very serious water collection here in the summer months, both run off and grey water.  I can't understand why new housing developments aren't required to have a grey water reuse system and other eco friendly systems.  Maybe they are and I've missed them.
There are several watering cans outside the back door for clean water, old tea and grey water.