Have you been fretting about raising your prices? If it’s been a couple years or more since your last price increase, now is probably the time.
Raising prices is never so bad as you think it will be. Your customers may even be wondering why you haven’t done it already (but they are much too… discreet… to mention it).
The best approach is to announce you will be raising prices at a date in the near future. Let customers know it’s coming, but don’t apologize for it. Have a well-reasoned explanation ready for any customers who ask questions.