For example, repackaging a pump bottle of hand sanitizer is a waste because at the first resupply you'll have to buy what they are selling. The last thing you ant to do is buy in bulk and then discard 75% of the bottle because it won't fit in your package.
I thought this packaging was going to be a good idea. The smallest bottle in the front is Neosporin. WTF was I thinking? I've been using it daily and having access to the tube would make more sense. I've repackaged some soap, shampoo, and bug spray. Only the shampoo made sense because I packaged it for my daughters and we never used it since it was only a weekend.
I bought in bulk... but it's only meaningful for long weekends not a thru hike.
I have collections of bottles that I'll never use. What a waste... besides the shampoo, campsoap... and denatured alcohol.