Generator 4-prong twist plug, by Reliance, new, never used; size L1420, 20A; typically costs over $15, buy here for only $5.
Air Conditioner Start/Run capacitor, 45 + 7.5 MFd, Totaline P291-4574RS, fits Carrier and other brands, used only one season until system interior Coil went, 2.5-in dia x 4-in high @ $10; also 2nd HVAC capacitor, 40 + 5 MFD, 440 VAC; 50/60Hz; non-PCB type; Packard Inc part no. PRCFD405, 2-in dia x 5.25-in high, buy for $9; plus 45/5 MFD capacitor at $7
OR Buy all three capacitors for only $16.
Southwire Receptacle tester, model 40010S-A -- $4
Explorer Plus Coax cable tester by Klein Tools w/instructions, Model VDV512-058; normally runs $40, buy for $16.