Thanks for all of the replies, everyone! I hadn't thought of the IGA in Clifton - that's a great idea. I've been using Findlay Market and a combination of stores downtown, like Walgreens and CVS. Thanks also for the tip on Tank #23; the only problem with it is that this only runs weekdays :( and during what appear to be heavy business commute times (7-8ish AM and 4-5-6ish PM).
For any of you interested, Amazon.com, as you may already know, is offering more and more groceries (mainly in bulk) online, with free shipping if you are patient. :) They also are offering stuff from the Gristedes NY supermarket, which (amazingly) will ship milk and frozen products in dry ice. Food for thought, though the shipping is still a bit pricey. ;-)
Sorry for the lame pun.