The majority of the sockets in our house are the older ones that are designed for appliances and electrical devices that have two prong plugs. This is inconvenient since so many of the newer electrical devices you buy do have three prong plugs.
Fortunately, we are able to plug in surge protectors in the few three prong outlets we have and then we can plug in several three prong plugs into the sure protector sockets. By doing this we are able to plug in our computers and printer and a few more items at the same wall outlet.
Eventually, we are going to replace all of the two hole sockets with the ones that will take three prong plugs. This makes more sense in the long run. If we ever decided to sell the house, the two hole outlets would be a negative for buyers. I think they make people think that the wiring must be out of date, and maybe dangerous.