My friends are always requesting that I make 7-layer dip for get-togethers. Very easy to make, and I usually get one of those disposable alumnium pans with the plastic lid to make it in. Easy transport, and you just toss the pan out when the dip is gone.
This is the order you put them into the pan, starting with Layer 1 at the bottom, then so on with the cheese on top. It's easier in this order because of the different consistencies. Also, I think it tastes best when chilled for an hour or so before serving.
Layer 1: 1 can plain (original flavor) bean dip
Layer 2: Guacamole
Layer 3: 1 packet taco seasoning mixed into 1 8oz tub sour cream
Layer 4: Diced roma tomatoes (any tomato will do, but I like romas because there are fewer seeds, so they aren't so messy to dice)
Layer 5: Diced green onions
Layer 6: Sliced black olives (I always skip this one cuz I don't like olives, but will sometimes put them in a small bowl on the side)
Layer 7: 2 cups Shredded cheddar or nacho/taco cheese mix
Serve with tortilla chips.