White slipping is one way to pick up more time...but for trips further out than next/same day pairings they are only awarded during pcs runs. These start on the morning of the 20th for next month. Be aware you may only white slip up to the pickup limit (usually alv +15) and trips are awarded via senority. You put in a WS request in "pcs-slip requests-white slip in base". Make sure to select the correct month in the slip pull down menu. You may request specific trip numbers or put in generic requests that meet your preferences such as report time or layover cities. Pretty self explanatory once you get in the template. There is a help menu button that is worth a read.

Another (better?) way is the pcs swap board pickup. This is when someone has a trip and wishes to give it away to another pilot. These are first come first serve and are placed on your line as soon as you click accept. These go active as soon as schedules are released in icrew, so no waiting until the 20th and no alv +15 limit applies, only FAR's. You can find these under "schedules-icrew swap board-search existing postings". Search for pick ups only and read the comments on the trips you wish to pick up. Some will say to just pick it up and do not contact. Click on one of those and its yours.

Of course if your category is short and you feel like gambling there is always the green slip option. Only awarded for same day/next day and then only after white slips and reserves are exhausted. Also be aware that double pay does not kick in until you hit your green slip trigger (find that on your timecard). If that is the case you have a few options on how to boost your hours to the trigger...either white slip/swap board beyond the trigger or you may use up to 5 hours from your bank to help out.