Currently, I'm using only a relatively small portion of my available cash for short term trading (most of the time). This means a good part of the time a decent percentage of my holdings are just sitting in cash earning money market rates (essentially). Question I have is might there be a better use for this cash for short term stints where it might earn a slightly better return? For example, should i shove it in and out of one of the gov bond funds? (say, TLT, for instance). Feels kind of wasteful just keeping it in cash. I'm definitely not interested in puttnig it passively in equity funds however. Thanks for any ideas...