Is there a way to sell 2 products for a discount?

Here is my question and not sure how to ask it.

We have two products that can be purchased individually or if you buy both of them together you get a discount.

Is there anyway to not let users order both the combo package (with discount) and the individual products?

Or is there anyway to show a discount if both products are purchased?

In other words
Each product costs $3.00 each but if you buy both of them for $5.00.

Right now I have it setup as 3 different products - 1 with the combo of both products and individual products for each item.
In a perfect world if they chose the combo package the two individual products would disappear.

Thanks for any help.

Thanks for quick reply!

Not really a huge deal but thought I would ask. Hopefully people won't be so dumb to order products twice. (Ha!)