am in the same boat....... again.
i have had a life pattern of this living and then normality and the normality always feels like the slumps.(i have travelled by foot,backpack,yacht for 7 years and of recent years by bike and its the same pattern).whilst travelling you have sensations of hieghtened experience good and bad and also meet with likeminded eclectic people.once you get home that kind of dulls and for most hampster wheel walkers washing the car on saturday and who won the local football game seems of a hieghtened importance to them.even if you try you can never really re connect to this (if you were ever connected in the first place).
a wise fellow yachtie (3 circumnavigations on a yacht called upyurs!!) once told me once you get the sand between your toes you can never wash it away.travelling by any means is exactly like this and with bike is no exception.
i have always found that you have to pay the ferryman and thats what i consider the slumps but in that time ....you can slowly and quietly draw your plans.re group,consolidate,repair, and then go!!!
whens the best time to plan the next trip i always feel its when you are actually on the one you are on.if that makes sense.
the first step is always the hardest but the rest will follow and then all of a sudden you have the 'flow' once again.

i am washed up on the beach (meterphorically) in perth also at this time alas 2013 will be better for one and all.
happy new year!!