Since I bought my first scope - a completely hidden world revealed itself to me.
I image the members of our Solar System, the International Space Station (ISS), also airplanes/ISS transiting the Moon/Sun/planets - so basically everything that is not on planet Earth :)
I just bought a 2x 1.25" barlow lens for my scope. It basically doubles the magnification of each eyepiece. Haven't tried it yet due weather circumstances, but once it clears up for a little bit I will.