The Wingham Bulb Spray is an excellent little tool that you may not even know you need, but trust us; once you've used this you won't ever go back.
One thing the majority of us are guilty of when wet felting is to use too much water. The old adage "less is more" is certainly true, especially if you don't want a sodden workspace within 5 mins of getting started.
With the Wingham Bulb Spray you can easily control not only how much water is being used, but also make sure you're getting it on the parts that really need it. Make up your soap solution in separate container, dip the end of the bulb into it and squeeze. The bulb will draw up the water which can then be drizzled over the work through the dispensing head, meaning you can use as little or as much as you like.
*Top Tip: An alternative is to pierce holes into the lid of a plastic milk bottle, fill with soapy water and use in the same way.