It's Christmas Day and a lot of people may be skipping their usual practice today. Don't skip it altogether! It's okay to do an abbreviated practice - and even if it's delayed, like you do it tomorrow - but don't go a few weeks without your practice if you can help it.
If you didn't get my yoga DVD for Christmas, there's loads of free stuff on the web. Search on youtube or find something you like to inspire you to keep practising!