Being a bit of a thrifty person I do use the moisturisers and lip balms, the tiny Colgate tubes have also been useful. The bags themselves are used for cables, my 'extensive' tooth brushing kit complete with travel waterflosser.
Things I use onboard are the socks to cover my own, never used the toothbrush, eyeshades or pen (the pen looks rubbishy so not tempted to try).
I now have 3 white company ones which MrD uses for his 'heads' for record decks, torches and spare batteries.
The new ones are a little small for a make up bag and the old ones too large.
Any I have and don't open are donated or given to family members for a bit of light relief when in Y.