I LOVE bundles and deals!! I typically post each of my items individually, and then also post it as a bundle and include some savings for the bundle. I mostly sell makeup, so putting several items together as a package deal works out great! A lot of clothing sellers do this as well
Another good tip! If someone is really on the fence about an item and I just want it gone, similar to what @Josediaz1974 said, I'll just tell them "hey, what if I throw in XXXX item to sweeten the deal - how does that sound?" - EVERYBODY loves getting a good deal, and this tactic almost always works out!