I always used fast/draft/eco/whatever mode that uses less ink, always (almost) print in b/w, and always double-sided (esp. since my printer does that automatically, without me having to turn the pages over like my old one!).
Also, I get a Staples coupon in my email every month to six weeks for a 'free' ream of paper... you have to buy it w/coupon, but get an 'Easy Rebate' for the full amount. Also that mini-box of five reams. Really awesome.
Also, for shops I'm really familiar with, I scan the stuff you're supposed to print, and if it's all the same-old, same-old, I just print the first page or two with location info & the main points. Those are put into my folder/clipboard in order each day I head out. Also ~ CHEAT SHEETS! are wonderful and paper and time saving.
But I like the idea of getting a tablet with the justification of saving on ink & paper! I might have to give that more thought.
Any time I have a sheet that's blank on one side, I cut it in half and when I have a stack of those they're bound into scratch pads. I go through lots of scratch pads.
Practitioner of the Nerdly Arts.