Welcome!

I had a great messenger bag that I used to use all the time and it was pretty great but its faling apart. I might rebuild it because I like it so much. I ride farther now and it matters if I am sweaty when I get to work so I haven't used a bag for quite a while because I tend to sweat with anything on my back.

What I use now is a bike with a rear rack a trunk bag for the stuff I always have like my lock etc and then I have one of those folding baskets on the side. The disadvantage of those is they are kinda heavy and they make some noise rattling around sometimes. What I like about them is you can put whatever you want in there. or if you don't need them they fold up. THey are pretly much a utility type thing which I like. If I need to take a bigger bag of stuff with me just throw it in there. If its just a small bag doesn't matter throw it in. I can take whatever I put in there easily and carry it with me. Its great for shopping. You could put something in it to keep the bottom of whatever you put in there dry which would be handy. I am not saying its the best idea, but its an option and I like it. I woudl like to try a pannier though that I actualy like. I had some old Cannondales I got at a Thrift store and while they were nice they were awful to carry anywhere and looked really weird off the bike.

You have what sounds like a pretty nice bag you can start with that and try out different things. Different stuff works for different people. One thing I like to have is one of these little gymsacks in my trunk bag to put your helmet in to carry it while you go into a store if you worry about someone stealing it. I have a bunch of these (probably near a lifetime suppply) from various booths at the fair.

http://www.famousfootwear.com/Shoppi...712&pg=1017659