Good advice Maudcat.
Sorry Mum doesn't like the winter months I hope shes OK .
Car boot sale on Sunday
I had a pair of jogging trousers under my jeans , T shirt ,thick jumper and heavy parka jacket then on my head I had one of those fur hats that tie under your chin and the temp was about + 2 degrees C . I can't imagine what minus 15 would be like . ( I think you guys still use Fahrenheit) .
Yes a change of attitude might work wonders .