household items for nutrients.

I would really like to know what household items that can be put into soil or water for growing. Some might not be household items but if you could name some brands that you could get anywhere in US that would be help. Also what is the best place to buy seeds from. Links would be good for that. Thanks for any help i can get.

Don't be fooled by stores that tell you otherwise.

Lemon juice - for soil growers, and it will bring your pH down - my filtered tapwater is 7.5-8.0, and even a tablespoon will send it down. It does not, however, add the the buffering capacity.

Epsom salts - good for foliar feeding (1 tsp per gallon) and good for if you're between feedings and want to add Mg or S to the soil.

Urine is a great N source, but I won't get into that.