Several essentials that I recommend......ex-pen, washable piddle pads, Nature's Miracle (or any other high quality enzyme cleaner), loud timer to get up in the middle of the night for a piddle, and an 'eagle's eye'. The general rule is: a puppy can hold its pee one hour for every month old it is. By the way, there are several members here on YT that have Great Danes and Yorkies.

~Joanne~
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Joanne

Eli

Chipper

Eva

Snowboy

Rosie(R.I.P. 1996-July 29, 2013)

Cocoa(R.I.P 1998-April 26, 2012):