A common frugal move is to cut the bottom off of toothpaste and other beauty care tubes when the tube has been squeezed to the point nothing else will come out. A friend was mentioning that she had just done this with her toothpaste, hoping to scrape out another few brushings worth of toothpaste. I said I do that too, and I also slit up the length of the tube from the bottom, then snip the back near the neck of the tube into wings. I'm able to get every last bit out. With some products this is very helpful. Anyway, my friend suggested I post photos of what I was explaining, here.
My hair dye kits come with this great conditioner. The conditioner comes in plastic tubes that can only be squeezed so much, then the last little bit just won't come out. If you remember, I "shampoo" my hair with conditioner now. Earlier this week, I checked the conditioner supply in the shower and found 2 of these nearly empty, squeezed tubes of conditioner.
I knew I wouldn't be able to get much out while standing in the shower, so after cutting off the end, I slit the back of each tube with scissors and snipped the "wings".
The result was I was able to scrape out enough conditioner to co-wash my long hair from these 2 opened up tubes.
My toothpaste also comes in those plasticky tubes. I slit the backs of the tubes and snip wings on those, too. It may only be a little bit of extra product, but 1, 2, or 3 extra portions every couple of weeks adds up.