I was lucky, my instructor let me pick my 2nd, 3rd and 4th solo X-C's (don't ask why I had 4). Anyway, the long one (I just remembered, they changed the PTS after I got my license), used to require a 150 nm trip, landing at 3 different airports and at least one leg >= 50 nm. So, if your favorite field isn't 50 nm away, save it for the "long X-C" and make that one of the fields you land at on the way home. ;-)
It is a kick. I know solo'ing is a big deal, but when you actually take off from one place and land some distance away at another all by yourself, you begin to feel like a "real pilot". Er, at least I did anyway ;-)