Question about using a new address every time

Let's say I send to the wallet 100 different times, using a different address every time, and get a total of 1 BTC.

If I then want to send this 1 BTC, do I have to mess around consolidating everything onto a same address? Or is it literally just as simple as: Plug in device -> send 1 BTC. Would this result in a much higher transaction fee?

Question about using a new address every time