About T-Shirt Design
If your humor is more laid-back than serious, I'm Really Glad No Can Hear What I'm Thinking T-Shirt fits that pretty well. The everyday humor angle gives it a little extra personality without making the design too busy.
You could wear it for holidays, bring it out for casual days, or just keep it in the normal shirt rotation. People who buy t shirts for the joke as much as the shirt itself will probably get what this design is going for. If you already like funny t shirts, this one fits right in without feeling like the same old joke. The joke is quick, the message is clear, and that is really all it needs.