The ultimate get-in, get-out workout

Now that I've gotten the hang of this gym, I've figured out my workout:

1. sit-up machine: 100 reps (currently just 60 lbs, but I'll get it back)
2. Romanian dead-lifts: 20 reps @ bar+50 (to increase to 100 reps before moving weight)
3. Half-squats: 20 reps @ bar+50 (to increase to 100 reps before moving weight up)
4. 15 mins rowing machine

I figure with a fun workout, I'm more likely to keep at it....