I do same as HH. Jeyes then Vikron.
Vikron sachets and big tubs can be bought at your local agricultural merchant, a sachets only something like £1.99.
I also use a powder disinfectant in my wooden floored huts in winter when its too cold for them to dry out but can't remember what its called. Won't buy any now until July but its lemony and seems to do the job.
HTH
mandy