I think that it is totally unnecessary for people who live in an apartment to buy a cordless screwdriver for more than 50 dollars. The Black and Decker PD6000, for example, costs about 30 dollars and has all the features that you could want, such as a quick-release collar, variable forward and reverse speeds, and a run time of 3 to 6 hours on a single charge. The best cordless screwdrivers from Dewalt or Makita are designed for people who need it for more heavy duty applications. The regular homeowner or renter will never need what these tools are capable of, making it a huge waste of money. Instead, go for Black and Decker, Skil, or even Stanley and other cheaper brands. These cordless screwdrivers are more than capable of mounting your new bookshelves or assembling an Ikea cabinet.