I've found and killed about 7 or 8 yellow jackets in my house in the past week or so. I think they have a nest in the house somewhere. I bought a yellow jacket trap last year that I put outside that caught a lot of them. It came with a small vial that you pour onto a cotton ball and leave at the bottom of the trap. The yellow jackets get trapped inside and die. I need to bait the trap again but what can I use that will attract them into the traps since I don't have any of the original bait left ? Where is the most likely place for a nest ? I'm going to buy some more traps tonight and set a few in the house and a few outside the house. Any suuggestions would be welcomed ! Thanks.