A hotel for insects!!!

I don't really like insects in general, but I know they are essential for a good local diversity and restore the balance of the food chain. the goal for gardeners is to promote auxiliaries species of insects (ladybugs, lacewings, Osmiae, ground beetles, the aphids, earwigs and hoverflies) valuable allies in the fight against pests plants. This isn't quite the IPM widely used in organic farming, but almost: we don't artificially introduced populations of beneficial insects, but it draws them into his garden and are encouraged to stay so they feed on pests or pollinate.
Then sometimes you keep your cool and you do something useful and which ultimately is rather nice, isn't it?