My cheap date solution is visiting the local observatory and watching the stars. The observatory in my city is open to visitors from 8-10 PM, and it's free. You get to watch the stars and planets and learn something new every time. There are always some visitors around, so the host has to let everyone watch a certain object before pointing the telescope to a new one. These interludes (when you wait for others to finish watching) are great for conversing with the girl, enjoying the night view of the city from the dome's terrace, and even escalating if things go well - I had a great date with one chick there, kissing and groping on the backside of the terrace underneath the night sky.
Right beneath the observatory there's a great bar I use for venue change. The observatory is located in the old city, so in addition to that there's also plenty of great scenery for taking a walk.
Right beneath the observatory there's a great bar I use for venue change. The observatory is located in the old city, so in addition to that there's also plenty of great scenery for taking a walk.