I buy as much of my stuff online at Newegg’s Electronic Store
I use a laptop, so a laptop stand recovers desktop space and I store my notepads and postits under my laptop. Shown here is the ALLSOP brand...
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I also have only 3 USB ports on my laptop, but about 8 USB items to plug in. So a USB Hub is vital to keep me running efficiently. This is the Kikkerland Hub Man. LOVE IT and will own one soon.
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I use a variety of color coded USB Flash drives. These are very inexpensive and get better all the time.
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A second monitor keeps my eyes on email on one screen and my active project on the other. A very efficient setup, but not necessarily a cheap addition.