Bees and other beneficial insects - ladybugs, butterflies, and predatory wasps - all need fresh water to drink but most can't land in a conventional bird bath without crashing. "They're like tanks with wings," says bee master Brian Campbell. "They need islands in the water to touch down on." Create a small wet spot in your outdoor garden, or tuck in a birdbath.

• Line a shallow bowl or plate with rocks.
• Add water, but leave the rocks as dry islands to serve as landing pads.
• Place the bath at the ground level in your garden. (Put it near "problem plants" - those that get aphids, for example - and the beneficial insects that come to drink will look after them.)
• Refresh the water daily, adding just enough to evaporate by day's end.