I've been slacking on my LTH reading, can't believe I didn't see this thread sooner. I am a bona fide bag lady and have many opinions on this topic and an unseemly collection of bags to back it up. I don't have a car and am always lugging around a laptop, multiple books, groceries for me & other people, snacks, meals, yoga and running clothes & equipment, all on walks, public transit and my bike in all sorts of weather.
First, backpacks:I swear by two. First, the North Face brand is obnoxious at times, but it's the only the brand of backpack that has never let me down. As a Canadian, I've really wanted to love Moutain Equipment Co-op's bags, and the few times I've tried to be less dorky I've tried to adopt a Brooklyn Industries more subtle-hipster-sporty backpack. I've had positive experiences with both MEC and BI, but I always return to North Face. I've shopped markets around the world with my NF backpack, carried a week's worth of snacks while riding 500 miles across Alaska in rainstorms on my bike with it. It's relatively light, extremely durable and has logical pockets. Also, I have yet to encounter a size or shape of tupperware that does not fit in it.
The other backpack I swear by is Patagonia's
Lightweight Travel Pack. It's not good for a computer, but it's super lightweight, easy to clean and does not absorb even the most abhorrently wonderful cheese odors. I particularly like this pack for shopping at the Dane County Farmers' Market. Of all of my backpacks, the Patagonia pack also makes me the least sweaty when walking around in summer.
Second, bike panniers:I get everywhere on my bike, and I buy
a lot of groceries. There are many good panniers out there, but my heart belongs absolutely to
Ortlieb. I own the
Back Roller Classic, which has served me without fail on even my most indulgent trips to farmers' markets and grocery stores. They're made of excellent materials. The craftsmanship is top-notch. They're lightweight, and they have the best locking system for securing the panniers to your bike for Chicago's bumpy roads. These panniers are soft and therefore allow for efficient packing, but there's also a flat back interior pocket that I've discovered is perfect for holding large flat parcels of charcuterie.
Lastly, messenger bags:I know people love Timbuk2, and I do use the one I own occasionally for weekend trips, but my messenger bags of choice are by Manhattan Portage, Freitag and Marimekko.
Manhattan Portage bags are the best value of any bags I own. They're durable, come in a variety of shapes and sizes including ones with highly visible reflective stripes and also have very logical compartments. I used mine for regular trips to Fairway, the Union Square Farmers' Market, Zabar's and Whole Foods when I lived in New York and got everywhere almost solely on foot.
I have a collection of
Freitag bags, which are also extremely durable and very individualized as they're made of recycled truck tarps (read: they look cool). In the last few years, they've done a great job of making more {farmers'} market-friendly shaped and sized bags. I will say that they're a little heavy as empty bags, but they last forever, and are probably the easiest bags to wipe down and clean, which I can say after one particularly memorable mishap with a jar of honey that went uncapped. Freitag bags also seem to have some insulative properties for cold items.
My
Marimekko Olkalaukku bag is the one I use most often and happens to be my favorite bag ever (and not just because of its name). I own three. They're just very classic in design, simple, durable, with logical, easily accessible pockets (no zippers). They not as easy to clean and don't fit all sizes of tupperware well, but the two parallel pockets under the flap are the perfect size to carry snacks (for me, Larabars) and fit books alongside water bottles, jars and smaller pastry boxes very well. (Example: I can get two boxes of small Hoosier Mama pies in there.) The Olkalaukku is also the perfect length to carry a bottle of wine.
Almost all of my bags are 5 years or older. My Marimekko, Manhattan Portage and Freitag bags are going on 10+ years, and all are in great shape. I bought a lot of my bags abroad, but I think they're all very easy to get online now, and, as mentioned above, you can compare prices. Best of luck in your search, and, if you can't find a bag you like, I can lend you one...or three.

happy_"bag crazy"_stomach
Edited to correct spelling
Last edited by
happy_stomach on May 27th, 2009, 3:12 pm, edited 1 time in total.