I think they are easy too.
I use a cold chisel that is about 14" long and 1" wide with a good sized cross peen hammer on a 18" handle. Holding the chisel with vice grips allows you to really swing the hammer without worry. Usually only 3 or 4 blows is needed for a 3/8" rivet. Then follow with a punch.

An air hammer with chisel and punch is really nice if you have one and air is available.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-