1. Hindsight is 20/20.
We have to remember that just like us humans, you can always take more off, but once you cut the hair short, you're in for a wait. If you are thinking about making a big change from a moderately long coat to a short or shaved coat, you may want to do this incrementally.
2. Don't go it alone.
Unless you can forgive yourself for a major error and you have the right equipment, very stylized, angled cuts are best left to the professionals. You may, however, want for both you and your Tzu to get accustomed to having touch-ups at home, since this can save quite a bit of money.
3. If your Shih Tzu has had a bad grooming experience
or your dog acts strange
after a visit but you aren't sure why, you may want to look into a facility that offers viewing windows. This is becoming a popular offering at doggie salons around the country.
4. Never assume that the groomer knows what you are envisioning.
The saying that a picture is worth a thousand words never fit better than when speaking about a hair cut (human or canine family member). Your idea of 'shortish' or 'longish' may be completely different than what someone else is thinking. If you're taking your Shih Tzu in for a new hair cut, bring along several photos that some as close to your ideal cut as possible.
5. If you are looking for a new grooming salon, word-of-mouth is better than anything you may read on a website. If you see another owner whose dog has a pretty style, don't be shy... ask where they have it done. And Yelp reviews are also a good place to get a general vibe of any particular place.