Sorry to hijack your thread, Ben. I also just did my first solo at the weekend.
After many frustrating circuit sessions where I seemed to be unable to judge the hold-off without ballooning, it was a total surprise to me on Saturday when I realised that I had "cured" my balloon. Seven successful circuits with my instructor, with an EFATO thrown in for good measure, and then he made the call to the tower telling them he was getting out and it would be my first solo.
The circuit itself was uneventful and fairly relaxing. I made a point of looking out of the window (as you're supposed to under VFR!) and enjoying it.
After landing, the tower said "G-OM, well done! Vacate at Whisky and taxi to the tower..." (...to collect my instructor who'd been watching from there).
What an amazing feeling.