If I were on salary, I'd say 40 hours is plenty, thankyouverymuch, and I'll take whatever sick time, vacation time, holiday pay, and personal time available when and as needed/appropriate.
If I'm on hourly, I'll do the same, but I might volunteer for an hour or two overtime, say, before the Christmas rush, a month before my scheduled vacation, and at random various other times during the year when there's a long weekend, so I can afford to do something nifty with the extra $ in my paycheck
I'm also happy with compensatory time off. We used to get that when I worked for the phone company. If I needed to leave just an hour early for a doctor's appointment, rather than have to put in for half a day's sick leave or personal time (since it had to be taken by half or full days only, not hours), I'd just work through my 15-minute break every day for 4 days in a row. Or I'd bring my lunch in and eat it at my desk while working, once or twice that week (since we got hour-long lunches, UNpaid).