1) Its a rule that you have to hold the handrail when using the stairs (either going up or coming down).
2) There are little red baskets near the stairs in case you are carrying too much stuff and do not have a free hand to hold the handrail, you can put all the stuff in a basket and then carry the basket up the stairs while holding on to the handrail.
3) You are required to back into your parking spot in the lot. Seriously.
4) Forklifts have the right of way. Watch where you walk.