I've been using these silicone dish scrubbers for about a year. They are far less gross than sponges.
All the tales of sponge-nastiness got to me last year. I decided that some silicone scrubbers were worth trying out, and a small expense if they did not work out.
These silicone scrubbers work fantastically!
Pictured are the two that currently live in my sink. The blue one gets more use, but both have been aggressively used for scrubbing over the last 12 months. They have not worn out, they have not become so fouled or toxic that I've had to toss one. There are still 3 others in my kitchen drawer waiting to be employed.
The only trick I find to cleaning with these, is that silicone scrubbers don't hold soap like a sponge does, so I'm either applying soap several times during a big wash-up, or I capture a bowl of soapy water at the beginning of cleaning.
You can just rise these off in the sink with water, but every few dishwasher loads I throw one or the other of the scrubbers into the machine. They come out almost as-new. I have heard tales of folks boiling these, but the dishwasher seems to handle it.
I still use a sponge sometimes, but these are where the cleaning starts.