Cacti are a popular choice of houseplant as they are low maintenance and full of character. As they grow you may have to repot cactus into a bigger pot
Diatomaceous earth has a lot of uses, both industrial and domestic. It is incredibly versatile and learning how to apply diatomaceous earth is easy.
Mint is a popular herb used for many things. Learning to propagate mint is easy and can be an easy way to save come coin.
Is your lawn a little brown? If you add nitrogen to soil it may make it lush and green again. This is a super easy hack.