Purchasing a tablet greatly increased my frivolous spending and time wasting habits, since it made them that much easier. It has positive capabilities as well, such as those mentioned by others - I do wish to point out the dangers, though. You may find yourself frittering dollars and cents just to waste your time on pretty pixels.

Extra points to someone who can figure out which biases this purchase model exploits. (high frequency, very low cost, frictionless transactions)