For me I just used the block sites settings in my router . As for phone wise I could never find anything for android that worked well and didn ' t require a subscription . I only pmo ' ed when I was at home and never anywhere else , blocking the sites worked well for me in the end . This works well when your starting out , eventually you build up self discipline and don ' t need to rely on blocking . <| sep |> Been wanting a pair of these for a while . Recommend going . 5 up . Also ycmc . com has the best deal on these and amazing customer service . <| sep |> I can ' t imagine the gunk and bacteria that will grow under the head of the first toothbrush . We have a silicone spatulascraper that uses that exact same mechanism to attach the head to the handle , and even using it once and washing it results in all sorts of crud , crap and corruption underneath . After a couple of weeks of toothbrushing ? shudder