What are good homemade insect traps?

[colinpurrington]

Something on my to-do list is to place a small piece of glass on the ground and then cover with a piece of wood slightly larger than the glass. Then when you want to see what’s moved in, you’d just lift the wood. Might attract some interesting ground beetles and such. The advantage of the glass would be that you could see the animals and photograph them without instantly alerting them to danger. They will sense the light, of course, just not the big disruption of having roof separated from soil. Just a thought.