1. Constantly stretch your limitations. And your paws.

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2. Don't be afraid to have frank conversations about what you want (i.e., more wet food.) 

 
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3. Sometimes you have to take a moment during the day for yourself.

 
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4. Don't sweat the small stuff. You'll catch another mouse. 

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5. Get out and make new friends from different backgrounds! And possibly different species!

 
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6. Spend quality time with those you care about -- even if you don't understand them half the time. 

 
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7. Don't get upset with the dog when he disregards your personal space...

 
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8. ... You can get creative in avoiding him. 

 
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9. There is almost nothing that stuffing yourself deep into the couch won't solve. 

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10. Adventures are necessary for staying cultured. 

 
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11. It's important to get enough rest... like, maybe 16 hours a day? 

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12. Don't worry so much about how you look. Being photogenic isn't everything.

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13. And lastly, never lose confidence, because confidence is key (to getting treats.)

 
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source: the Dodo