Everyone has seemed to cover most things.
Here are my additions:
1. Don't fly if Temp/DP spread is <5C.
2. Watch for halo around ground lights.
3. If you have to make an emergency landing into an area of unknown at night, maintain max glide until 500' agl then min controllable spd to touchdown.
4. Verify rwy hdg on dg and hold that hdg on climbout. You won't spiral in if the hdg remains the same.
5. Wear sunglasses for a few hours before dark.
6. Close one eye if someone shines a bright light in your eyes.
7. It will be difficult to see planes below you if over bright city lights.
8. Scan and don't stare. You have a 5 degree blind spot.
9. Know how to engage autopilot(hdg/alt hold)if you need it.
10. Always turn nearest airport lights on in case of emergency, one less thing to do.
11. Most airport lights turn off after 15 min, reactivate before landing. Not fun if they go off during your flare.
12. Do a low pass over rwy to check for animals and be ready to go around at anytime if you see those beady eyes.
13. Check interior and exterior lights before A&P goes home in case bulbs need replacing.
14. Top off tanks! Double check caps!
15. Use VASI/PAPI if available.
16. Raise your visibility/ceiling minimums higher than what is required.
17. Taxi slowly, it is easy to go too fast.
18. Practice checking for ice on wing leading edges even though may not be needed now.
19. Ask your instructor if you can practice steep turns at a safe altitude.
20. You have 88% moon illumination tonight, excellent.
21. Get flight following.
22. Use towns, rivers and lakes as check points.
23. Set your com2 to 121.5
24. Check your ammeter occasionally.
25. Sit it cockpit, close eyes and feel for each item. You will get less clumsy with practice.