Pallet rain barrel stand for collecting rain water to use in your garden. If only collecting rain water wasn't illegal.
Besser or Cinder Block Raised Garden Bed
These wood templates will save you a lot of time making evenly-spaced planting holes. These wood templates will save you a lot of time making evenly-spaced planting holes.
Use a rainwater collector for watering plants
Mini greenhouse ~ Cut the bottom off a gallon milk jug and when a cold snap is in the forecast, place the jug over your plant, to keep warm in early Spring and Fall. Lots of other 25 No-Cost (or Low-Cost) Garden Tools