An arcuate slot of at least 180° in the lid top permits squeezing pressure to be applied to the lid skirt at two diametrically opposed points to effect displacement of a portion of the lid providing access to the bottom of {HEAD ~ the lid} for swinging {TAIL ~ the lid} open 
for swinging
An arcuate slot of at least 180 ° in the lid top permits squeezing pressure to be applied to the lid skirt at two diametrically opposed points to effect displacement of a portion of the lid providing access to the bottom of { HEAD ~ the lid } for swinging { TAIL ~ the lid } open
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