I'd like to know what you use to apply conditioner/moisturizer/cleaner/etc to your Bbags... Hands? A soft sponge? Cotton balls? A clean rag? Q-tips? For some reason I'm afraid using just my hands might harm the conditioning/cleaning process so I'd really like to hear from the experienced Bbag owners what works well in applying an even and clean coat of conditioner/moisturizer/cleaner/etc. Thanks!