There's always the "Booger Bench".
Plans are everywhere on the inter-web.
For a hard core PD'er the more expencive swivel benches are allot better, but for the two or three days a year I use mine it works fine.
This one cost me about 35.00 with parts from Home Depot.
Plenty of money left to build a proper concrete bench at the house if you want.
I also bought one of those 5gal buckets with the padded swivel seat. Works great, and carries allot of gear.
