Cleaned 3 drive chains today-

Bike 1---Used the chain cleaning tool with Proper degreaser in it- or rather commercial degreaser I have at work. 1 minute turning the chain and it was clean. Then used a brush to clean the deraillers and Crankset and took the wheel off to get the sisal in between the cogs. Total time 10 minutes but add 5 for cleaning the rear wheel of Dirt and oil.

Bike 2--Have a detachable chain so skinned knuckles later and chain was in the degreaser in a jar and shaken. Then the brush on the deraillers and crankset and No sisal left so folded rag to get between the cogs. Total time 10 minutes + 5 for the wheel and two putting on the elastoplast.

Bike 3 quick wipe over the chain with a greasy rag and wipe excess dirt off the deraillers and crankset. total time 5 minutes and did not do the wheels. Then 15 minutes to do it properly as the chain crunched as it turned and the bike looked dirty.