Forget about the subway this weekend, just forget it; it's a perfect storm of aggravation: Of the 20 lines that operate on the weekends, 18 will suffer some type of "serious" delays between tomorrow and Sunday. Riders on the 5, A, F, G, L and E have to do the dreaded shuttle-bus transfer at various points along their routes; the 1, 2, 7, B, N, J and R will skip a section of stops; and the 4, 6 and Q lines will run express at times, bypassing more stops. Oh, and the D will run on the N during midday hours tomorrow, skipping 12 Brooklyn stops. Only the M line will be spared. Yeah, the M.



