Wools don’t need washing as often as other fibres might, in fact, they will last a lot longer between washes if you don’t.
Simply hang out your garment, many types of wool have anti-bacterial properties already in the fibre and will self-clean.
No knitted things will enjoy a trip round the tumble dryer! Instead, when drying, lay your woollens flat on a towel to absorb any extra moisture, whilst gently reshaping them.
Knits can be heavy when wet and that extra weight will pull them out of shape if you dry them over a rail or hanging up.