Some of the tips seem a bit obsessive to me, but here are a few I absolutely agree with:
#4 Bring a cloth bag that has plenty of room and can hang over your shoulder. For frozen meat or delicate greens, consider an insulated bag.Now, although the Baltimore Sun couldn't be bothered to run a list of local Farmers Markets, we here at your local neighborhood blog are happy to do so:
#5 Get to the market early if you want the best pick of the market.
#7 If you have time, walk the market once through before you purchase so you can get an overview of the offerings.
#10 Bring cash, "especially ones and $5 bills."
Here's a link for the State Directory of Farmers' Markets. Scroll down to Baltimore City and you'll see there are plenty in the City and in Baltimore County, too.
The Market in Waverly is open year round, and they have their own website: 32nd Street Farmers Market.