just follow the correct dilutions. OID streaking is attributed to heat, dilution, over-dampening.
try 1:4 OID-distilled water: your fold of MF should just be damp instead of almost soaked when you're done. the good thing is that you won't deplete your OID as fast. btw, check your bottle cos the smaller ones of OID are not labeled 'concentrated'.
that will work. use it on distilled water instead

. just kidding. at around 1:50 or 250ml (i may have written 25ml before) per washing machine load, vinegar on water won't be smelly. your folks can also use it for adobo. label that as such when you find distilled vinegar, which you will relabel 'acetic acid - poisonous' ;).
find distilled vinegar at the imported food section of puregold, robinson's, maybe SM, etc.