Ladybugs???

I've never tried this, but just found it googling as your question interested me: http://www.getridofladybugs.com/

It's not free, but at least a suggestion depending how overrun you are with ladybugs.

Here's another article by some people with the same type problem as you and how they solved it. It may be a little useful to ya.

http://www.smokymountainnews.com/issues/11_02/11_2...

Studies at some leading universities have found the best way to control them is to get three tubes of caulk and a caulk gun and go around the house and fill every crack and hole you can find, especially on the south and west sides. It's a lot of work but these Asian ladybugs get between the outer wall of the house and the inner wall. If they find a hole in the inner wall, well, then they are in your house. Once there the best control is a vacuum. If ther are quite a few you may want to use a vacuum with a disposable bag. The vacuum beats them around a little and they smell bad.

The beauty of caulk is it works for years and it keeps out a lot of other pests like spiders, ants, millipedes, etc.

You other option is to get a hose-end sprayer and spray the sides of your house with malathion or sevin. This will kill most of them before they can get between the walls. The downside is you have to do it every year. The first year may be an emergency and your only option but do you really want to have to spray your house every year? And who wants to live in a house coated with pesticide?

Go for the caulk. I did it and I had exactly 3 of them show up in my house all last autumn and winter.

Its a cycle .It happened at my house for a few years they will move on. Not much you can do about it

heres an article

just get one of those sticky things that u can use to catch fly's... and pick them off outside