A few general purpose signal diodes. A few general purpose transistors, such as ZTX300 or 2N2222. Geared Motors - final drive speed 20 to 200 rpm. Batteries - see below. Also it only takes around a week to be delivered.
Shops often have low stock levels of critical parts.
Generally good service. Really nice range of regularly stocked products plus some excellent surplus motors plus cheap scrap boards. No postage charge, No minimum order, Really good prices, Excellent range, Excellent service. My component retailer of choice. Ridiculously good prices.