Things that I have learnt in my relationship:
1. She does not care what goes in and out of the toy box.
2. If the toy box needs feeding, the new tyres vs new curtains negotiations commence.
3. I always do well on a deal. Experience and fun have value.
4. She says "You always say you bought it cheaper than you did and say you sold it for more than you did". Don't argue although it is patently an exaggeration, no need to point out you made $5 profit on the chainsaw you sold in 2006.
5. Having something go wrong on long trips (about 80% average) adds to the fun. Note for beginners- if you manage to get through the first few years of roadside "adjustments" or even rescues while she sits calmly doing a crossword ignoring the foul language from under the vehicle things will get better. She will come prepared with books, crosswords. drinks and nibbles and so long as you don't ask her to push in the mud and rain it will become a totally expected development.
6. Try very hard to stop to let her go to markets selling homemade jewellry, alpaca wool scarves and $25 bottles containing 3 "organic" olives while you calmly hook into her crosswords, books and nibbles. Remember she has to put up with a whole weekend being bored S..tless at a vehicle show in return.
7. Never try to get her seriously interested in vehicles or anything to do with vehicles (other than maybe driving any "nice" ones, not trucks, you may own). It is a lost cause and leads to unrest. East is East and West is West and never the twain shall meet. Run the girls to town, the botanic gardens or whatever to try to balance the weekend.
8. Often shows have a sausage sizzle or bbq the first night and dinner the second. It may be worth missing one feed in a noisy, cold showground shed and going to a restaurant with her or with one or two other couples
Just my thoughts.
Lang
). There are limits to every capitulation made by man! 
