If you're buying from a reputable B&M or a good etailer like the site sponsors here, the tin or zip-loc that it comes in should be more than adequate to store it for several weeks. But (there's always a but) if you're looking to expand your horizona and branch out into new blends, now is a perfect time to start building a cellar. Most of us think of cellaring as involving larger quantities of tobacco put aside for future enjoyment but you can start on a small scale just as easily.
This time of year almost any grocery store should have Mason jars in a variety of sizes (Actually, they'll probably be Ball or Kerr brand). I pay about $10 a case (12 jars), the smaller ones are a little less. Before using them, they should be sterilized. A pass through the dishwasher is the easiest way. Thoroughly rinse them out afterwards, you don't want any trace of soap remaining.
If you buy a 50g tin (1.75 oz.) leave an ounce or so in the tin for current use and put the rest in one of the jars, seal it tightly and label it with the name of the blend and the date. Put it somewhere cool and dark and forget about it for 6 months or a year. Tobacco that tastes good today will taste better a year from now, even better in 3 years.
You've accomplished two things. First, you've started a collection of blends that will improve with age and will give you a wider selection to choose from in the future. Second, you've given yourself a great excuse to go out and buy more tobacco and that's always a good thing. 
"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants."
-- Thomas Jefferson
