A really wide cap you can stick on your plastic bottles so that they stand upside-down. This way your condiment is ready to pour and you don't have to waste time making rude noises while squeezing your almost empty bottles.

Apparantly the original bottle inversion cap is the BigFoot. The BigFoot is dishwasher safe.

Warning:
Do not use with glass bottles of any type. It doesn't say why.

Note:
The bottle inversion cap is good with ketchup.