If you are driving 95, you have the NJ Turnpike which is $4.85, the Delaware Memorial Bridge $6.00 and the Fort McHenry Tunnel $2.00. Coming home you have the MD Turnpike $5.00, the Delaware Turnpike $1.25 the NJ Turnpike $4.85, the GW Bridge $3.00 and the NY Thruway $1.50.
Note : These tolls are with the EZ-Pass discount, which if you don't have one, get one. They are free, just replenish with a CC.
Now I know that the NY Thruway is $2.00, the GW bridge is $8.00 the Delaware bridge is $6.00 the NJ turnpike is around $7.00 and the McHenry tunnel is $4.00, the Delaware turnpike was $3.00, the MD turnpike is $5.00.
These are big discounts for having electronic tolls.