If the field takes 18 hours, and i know i'm going to be at least 1 hour and at most 6 hours online, i'd do 1~6+ quick ventures and before logging out the field exploration, so it would be a full 24 hour and when i log in again and have the 18 hr coming back;

And for weekends i'd do the 18 hour right when i login in friday, so i know when i wake up in the saturday it would be completing(or at least near of);

I thought in putting the account of venture tokens, but i read in the forums that these are pretty much easy to get;

What do you think? And what's your strategy?