What you are doing is probably the best way you can at the moment. I would say as soon as you get the scratch together invest that 20-23$ in a bettr bottle carboy. You won;t want to go back. A lot less exposure or head space. Buy a 6.5g and 2 5gs and you will be set. This way you do a primary, wait a week or so, rack it,brew again. Then plan you next brew around when the second if going to free up. Work itright and you will be able to start a batch each week and by definition you will have one coming ready to drink each week once the pipeline is full.
I am getting there I had 2 primaries and two secondaries working tonight. I bottled both of the secondaries tonight. I am free to brew again now. I am doing a Centennial Blonde (from Biermuncher) tomorrow. I am also doing a Belgian style dubble tommorrow or Thursday I also washed the yeast from both batched and came out with a couple nice pints of each.
I now use my buckets for slop, for bottle washing and then bottling.
On Tap: 1. Kelly R. IPA, 2. Roter Hund Hefeweizen, 3. Bud Killer Blonde, 4. Red Dog Pale, 5. Roter Hund Oktoberfest, 6. Pumpkin Ale, 7. McRed's Stout (with new nitro system and stout tap,) Cream Soda, 8. ESB # 3, & 9. Ordinary Bitter.