Here's a link to the Parents' Association FAQ on this and related subjects:
U.S. Coast Guard Academy Parents Association - SWAB FAQ
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It suggests packing only what the swab can carry comfortably all over the place, all day long.
Don't have them become the subject of extra attention (and ridicule) because you force them to pack more than what they are supposed to.
On R-Day they cease to be yours, and become the Coast Guard's, in a hurry!