Taking Stock(!)

....and each one has a purpose....
Left Hand Side Column, Top to Bottom -
Mizuno Wave Harrier 3 Black - Muddy Trail
Mizuno Wave Harrier 3 Blue - Muddy Trail
Adidas Swoop Yellow (pair one) - Muddy Trail / Cross Country
Adidas Swoop Yellow (pair two) - Muddy Trail / Cross Country
Top Row, Left to Right -
Mizuno Wave Ascend 6 Yellow (pair one) - Trail
(directly below above) Mizuno Wave Ascend 6 Yellow (pair two) - Trail
More Mile Cheviot Black - Forest Orienteering
Adidas Swoop Orange (pair one) - Forest Orienteering
Adidas Swoop Orange (pair two) - Forest Orienteering
Second Row Down, Left to Right - 
Mizuno Wave Ascend 5 - Trail
Mizuno Wave Ascend 6 Black - Trail
Mizuno Wave Ascend 6 Blue - Trail
Mizuno Wave Ascend 6 Orange - Trail
Third Row Down, Left to Right - 
3 x pairs Mizuno Wave Ascend 8's - Sprint and Urban Orienteering
Bottom Row, Left to Right - 
2 x pairs Adidas SuperNova Glide 3's - Road
Mizuno Wave Ultima 4 - Road
........
and that's why the ideal number of pairs of running shoes that any athlete needs is always "n+1", where "n" is the number of shoes currently owned / in use :)