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Sale Price $18.62.
Original Price $21.90 Comp. value
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Optimizing Efficiency T-Shirt
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Color & Print Process: Charcoal Heather
Vivid Printing: White Underbase
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Optimizing Efficiency T-Shirt
Stay comfortable and stylish while you optimize your productivity with our "Optimizing Efficiency" t-shirt. Made from 100% high-quality cotton, this t-shirt is soft, breathable, and perfect for everyday wear. Featuring the slogan "I'm not procrastinating, I'm just optimizing my efficiency" in bold, white letters, this t-shirt is a great conversation starter and a perfect gift for anyone who values productivity and efficiency.
Whether you're working on a project, studying for an exam, or simply trying to get through your to-do list, this t-shirt will help you stay motivated and focused on your goals. With its classic design and comfortable fit, it's perfect for wearing to the office, gym, or just lounging around at home.
So, if you're ready to take your productivity to the next level, order your "Optimizing Efficiency" t-shirt today!
Customer Reviews
4.7 out of 5 stars rating32.3K Total Reviews
32,280 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Small
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Grandma wore adult large with long sleeve shirt underneath. Tall girl adult medium. Dark haired male adult large. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back.
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Anthony B.March 1, 2017 • Verified Purchase
Basic Dark T-Shirt, Navy Blue, Large
Zazzle Reviewer Program
I can spend hours readings the crazy sayings on t-shirts because I have nothing better to do with my life. On this particular day of shopping, I wanted several beard lover t-shirts and added this "I Won't Grow Up" with my purchase among several other interesting designs. I am not going to "golly gee" every shirt in my order, but I was elated with my selections. I'm retired and want to remain young in spirit while rocking a swag style to encourage my fellow seniors to loosen up and have fun! A picture says a hundred words, so I'll upload photos for future customers to see that the t-shirt are represented in the true colors as displayed on the Zazzle website. Don't let my mean, "no smile" look take away from the cool shirt...I'm happy!
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Small
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Dark haired male wearing adult large and female wearing adult medium. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back. They printed random cupcake image I downloaded from internet with no problems! Looked perfect! Front design was stock from zazzel.
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Product ID: 256718108990078568
Created on: 4/27/2023, 2:38 PM
Rating: G