Hi Dlaudy! It always depends on how long I am away, if it is a business trip or a vacation, and what the surroundind circumstances are. I have done all or one of the following depending on the circumstances:
1) No exercise at all
2) A 30 minute run along with non-weighted squats, lunges, push ups and sit ups
3) Band/tubing exercises to hit all major muscle groups
4) Hit a local gym for an hour
5) 5 minutes of crunches/40 push ups/30 dips off coffee table/40 plyo jacks (three times a day)