I still insist on getting paper bills in the mail because I want a hard copy marked PAID to prove I did. But I pay them electronically. No worries that the Postal Orifice will lose a check and screw my credit rating.
I too have drafting tools, slide rules, T-squares, and mechanical pencils tucked away. Along with a pilot's navigation calculator (mechanical) for figuring true air speed, Mach number, and wind drift.
