Greetings!

Where I am (large corporation), we would give 2 weeks for someone just starting, an addition week after 7 years, and another week at 15 years. There would be about 7 holidays. But you would also get 4 personal days and 3 "floating holidays" that you could take at will. Plus the ability to purchase a week of extra "unpaid" time.

The trick is actually getting the time / project schedule to use it all...