Let Me Ups

Question: What are some good ways to do Let Me Ups?
 * Discussed here, here.
 * Best bet is an adjustable height pullup bar -- can move it up and down for pull ups and other stuff. Good for incline push ups too if you don't have much space.
 * Put a pullup bar, broomstick, etc. across two chairs.
 * Hang a couple of light ropes down from a pullup bar, tie loops, and put a broom stick thru the loops. Or just pull on the loops.
 * I have one of those folding tool stands that is about the same height as one of our bureaus and I put a large bamboo pole across them with folded towels to pad them.
 * I've been using my dining room table. I was afraid it'd tip, but it's been very stable. It's never budged. The grip is different, of course, but it's the best I've found so far.
 * Pull-up bar + chair about 2 feet out from doorway to put your feet on.
 * Tall table or countertop -- requires a lot of grip strength, as you will make an L with your hands to hold onto the edge of the table/countertop.
 * Adjustable gymnastics rings from Rouge Fitness. When I can't use 'em I do bent-over rows... they are less demanding, but at least I'm working similar muscle groups.
 * At home I use my desk or my TRX straps. When I'm in school, I use those bar set-ups they have in parking spaces.
 * I've been using the dining room table too, but had a few scary near death experiences and decided to buy a dip station.

Question: What can I do to build enough upper body strength to be able to do Let Me Ups? I failed completely to do a single Let Me Up, even with bent knees.
 * Let me ins are a very similar motion with much lower difficulty, try focusing on those for a while.
 * Try to raise the bar higher up? That should make them easier.
 * If you can't go all the way up, you can do "half-sees" go as far as you can up and focus on the negative on the way down. That's what I did when I first started doing them, it will work many of the muscles needed to do the let me up. You could also do bent-over rows. If you don't have dumbbells or weights, you could use milk jugs full of water or a bag full of books.
 * Focus on doing negatives if you can find a way to do 'em.