Small accomodations are nice, but I personally wouldn't want a lady to go out of her way to get extra stuff. Sodas, juice, or water would be enough. I do feel a bit out of breath and dry throated after one of my more energetic sessions, so those things would be nice. They don't have to be anything special, just something that you would drink yourself and you have enough to share.
I don't care if you see more than a couple guys before me, but please don't let me see the remnants of it. If there are no new/clean face towels I already know I'm anywhere from guy #3 to infinity.

Not particularly the greatest of feelings to know this.
If you're so insistent on using your own, please start buying the better brand of condoms. Just about all versions of Trojans are like an old '83 Datsun truck. Back in '83 they were cool, but since then so many better models have been made. Dallas metro has NO LESS THAN 4 separate condom stores. I know because I have physically walked into and purchased something out of all 4. The better brands don't particularly cost more than the outdated Trojans series. At worst, they're a buck or two more per 12 pack, if that. Whenever a Trojan is pulled out during a session, it instantly becomes a buzzkill. I always bring my own, but some ladies are real anal about using theirs (no pun intended). If you're going to be that way, go with quality.