Environmentalism as bad work ethic

Sometimes, two belief systems get in the way of each other. I try to make a slightly smaller impact on the environment. I also try to get some work done. But there are many ways that I've chosen to do a little bit to be less of a energy/resource glutton that have probably gotten me into a bit of trouble.
To wit:

• Letting students turn essays and poems in on Vista to save paper: This is fine in the abstract but students take the electronic deadline as a negotiable one. And I care and tell them they'll lose points for turning in late but if everyone does it, then the points don't really take or matter in the end anyway. And since I grade/comment the day before class, I don't care as much as I should.
• Speaking of grading or commenting: I grade/comment electronically to save paper. This means I give great, long narrative commentary but not so much of the grammar/proofreading variety. I will do "Track changes" on larger documents but that's only so helpful.
• My own writing: I revise online. Sometimes I'll print it out to great guilt. In revising this last project, I printed twice and revised from there. Perhaps this will appease the publishing gods.
• I try not to drive. So I go to campus less often than I would if I lived across the street. I go in twice as much here as I did in GR though, probably because campus is twice as close.
• Clean house: I hate to use paper towels. Sometimes, that's all that works. If I could use a paper towel each time I had to clean up a tiny spill, well, my table wouldn't look like this.
• Dog: She probably would be a lot thinner if I didn't try to save water by letting her be the pre-recycling, pre-dishwasher cycle that she's become.
• Yard: I'd try to grow some flowers or plants this summer if I didn't cringe at the water I'd need. However, we're planting wildflowers when the monsoons hit so it won't look exactly like a campground outside our house.
• Alerts, newsletters, etc.: I think I might have a better outcome if I put notices in my grad students' boxes. But instead, I send email reminders weekly. I'm wasting electrons as much as I'm wasting my time, since I'm pretty sure students have come to ignore my incessant emails.

I'm sure there are more instances but even if I find them, I'm not sure I'll reform. I pretend these little things make a difference.