Karen, I am with you on the winter sowing.
Going to do rock garden candidates and a few perennials.
Did indoor sowing yesterday : Pelargonium type Geraniums.
Ivy geraniums
a Mix
Scarlet Picotee
Salmon with narrow petals
I already have plants and cuttings on the go.
My containers in 2018 will be mainly bedding plant type Geraniums.