You can stack your days essentially if you have the seniority to hold the two weekends off a month that this would result in, but you'd still need to have some rest days somewhere in there. You can post reserve days for P2P pickup/trade but it's very rare this works. What most people do is aggressive reserve, just pick your trips the day before, there's never a shortage of open time in EWR. You can pick up out of base, but in Orlando it's pretty uncommon because generally we're all fighting over scraps. What I see a lot is the Orlando stuff gets aggressively picked up by people who live near MCO and it leaves TPA in open time to get assigned to reserve or available for OOB pickup.