Gwynedd D.
Yelp
This is an institution in Delaware below the canal (aka Lower Slower.) The shop was probaby originally a convenience for the local Amish population that surrounds the west Dover area. This store serves the need for dried goods and foods at a good price for large families.
What Bylers stocks are dry goods (soup stocks, beans, rice, noodles and pasta, prepared mixes, spices, sugar, flour, meal, grains) and they have a deli section, a sort of off-price grocery (where you might find cereal or tomato sauce at low low prices but not the same thing every week.) I found Cracker Barrel cheese (not my favorite kind of Cracker Barrel--it was baby swiss, but cheese nonetheless) for 2 bucks a brick. And a very decent canned pizza sauce from San Marzano tomatoes. In fact, the pizza sauce was excellent. There is also a frozen section as well as a cute housewares/decorative store and they sell wood stoves and grills if I remember correctly.
The spices come in plastic tubs. There are all kinds, the ones the local grocery never carries (cream of tartar, mace) and at prices far lower than the confiscatory price of those little red-topped jars. However, not all of them are great--the cinnamon is apparently coated with cinnamon extract (artificial) and goes off quickly. I get my cinnamon mail order from Penzeys as a lot of commercial cinnamon these days is ground-up tree bark coated with artificial flavoring. Not Bylers fault--this is an issue with many ingredients these days that have been cheapened to cut cost. Don't buy the cinnamon. But the dried spices like mace and whole allspice, and the herbs (savory, thyme, rosemary) are good and even can be found ground or whole.
You need to be careful of the expiration date on some of the foods--the discount is good but if you can't consume mass quantities right away, it may not be a good deal for you. If you bake a lot, this place is a treasure; good flour and sugar, including bags of raw sugar at a good price, not the teensy bags at ridiculous prices you find elsewhere (I prefer raw sugar in baking, if possible.)
This place is hopping on the weekends--families in Dover who need to watch the pennies and who are willing to seek out bargains know Bylers and are regulars. The parking lot is large and easy to navigate. There is a second, new location in Harrington off Rte 13, but I haven't been inside.